97991149037 has 16 divisors (see below), whose sum is σ = 99270243072. Its totient is φ = 96719011200.

The previous prime is 97991148977. The next prime is 97991149099. The reversal of 97991149037 is 73094119979.

It is a cyclic number.

It is not a de Polignac number, because 97991149037 - 2²⁴ = 97974371821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97991199037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59859383 + ... + 59861019.

It is an arithmetic number, because the mean of its divisors is an integer number (6204390192).

Almost surely, 2^97991149037 is an apocalyptic number.

It is an amenable number.

97991149037 is a deficient number, since it is larger than the sum of its proper divisors (1279094035).

97991149037 is a wasteful number, since it uses less digits than its factorization.

97991149037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308.

The product of its (nonzero) digits is 3857868, while the sum is 59.

The spelling of 97991149037 in words is "ninety-seven billion, nine hundred ninety-one million, one hundred forty-nine thousand, thirty-seven".