97031094640 has 40 divisors (see below), whose sum is σ = 225812140848. Its totient is φ = 38775475200.

The previous prime is 97031094637. The next prime is 97031094647. The reversal of 97031094640 is 4649013079.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×97031094640³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97031094647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492937 + ... + 661096.

Almost surely, 2^97031094640 is an apocalyptic number.

It is an amenable number.

97031094640 is an abundant number, since it is smaller than the sum of its proper divisors (128781046208).

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

97031094640 is a wasteful number, since it uses less digits than its factorization.

97031094640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155097 (or 1155091 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 97031094640 in words is "ninety-seven billion, thirty-one million, ninety-four thousand, six hundred forty".