61671084048 has 300 divisors, whose sum is σ = 214340662272. Its totient is φ = 17051368320.

The previous prime is 61671084043. The next prime is 61671084073. The reversal of 61671084048 is 84048017616.

It is a junction number, because it is equal to n+sod(n) for n = 61671083994 and 61671084012.

It is not an unprimeable number, because it can be changed into a prime (61671084043) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1952961 + ... + 1984287.

Almost surely, 2^61671084048 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 61671084048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107170331136).

61671084048 is an abundant number, since it is smaller than the sum of its proper divisors (152669578224).

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

61671084048 is a wasteful number, since it uses less digits than its factorization.

61671084048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31392 (or 31370 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 61671084048 in words is "sixty-one billion, six hundred seventy-one million, eighty-four thousand, forty-eight".