97991149025 has 48 divisors (see below), whose sum is σ = 155186817408. Its totient is φ = 59595456000.

The previous prime is 97991148977. The next prime is 97991149099. The reversal of 97991149025 is 52094119979.

It is not a de Polignac number, because 97991149025 - 2¹² = 97991144929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 541862 + ... + 699711.

It is an arithmetic number, because the mean of its divisors is an integer number (3233058696).

Almost surely, 2^97991149025 is an apocalyptic number.

It is an amenable number.

97991149025 is a deficient number, since it is larger than the sum of its proper divisors (57195668383).

97991149025 is a wasteful number, since it uses less digits than its factorization.

97991149025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241642 (or 1241637 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 56.

The spelling of 97991149025 in words is "ninety-seven billion, nine hundred ninety-one million, one hundred forty-nine thousand, twenty-five".