98788267361921 has 4 divisors (see below), whose sum is σ = 100179651409344. Its totient is φ = 97396883314500.

The previous prime is 98788267361873. The next prime is 98788267361923. The reversal of 98788267361921 is 12916376288789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98788267361921 - 2²² = 98788263167617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98788267361923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695692023605 + ... + 695692023746.

It is an arithmetic number, because the mean of its divisors is an integer number (25044912852336).

Almost surely, 2^{98788267361921} is an apocalyptic number.

It is an amenable number.

98788267361921 is a deficient number, since it is larger than the sum of its proper divisors (1391384047423).

98788267361921 is a wasteful number, since it uses less digits than its factorization.

98788267361921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391384047422.

The product of its digits is 877879296, while the sum is 77.

The spelling of 98788267361921 in words is "ninety-eight trillion, seven hundred eighty-eight billion, two hundred sixty-seven million, three hundred sixty-one thousand, nine hundred twenty-one".