1957191096 has 128 divisors (see below), whose sum is σ = 6058990080. Its totient is φ = 514031616.

The previous prime is 1957191077. The next prime is 1957191143. The reversal of 1957191096 is 6901917591.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114840 + ... + 130776.

It is an arithmetic number, because the mean of its divisors is an integer number (47335860).

Almost surely, 2^1957191096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1957191096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3029495040).

1957191096 is an abundant number, since it is smaller than the sum of its proper divisors (4101798984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1957191096 is a wasteful number, since it uses less digits than its factorization.

1957191096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013 (or 16009 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 48.

The square root of 1957191096 is about 44240.1525313826. The cubic root of 1957191096 is about 1250.8668325554.

The spelling of 1957191096 in words is "one billion, nine hundred fifty-seven million, one hundred ninety-one thousand, ninety-six".