97691617390 has 32 divisors (see below), whose sum is σ = 178514604000. Its totient is φ = 38487606144.

The previous prime is 97691617379. The next prime is 97691617399. The reversal of 97691617390 is 9371619679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97691617399) 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, 78765 + ... + 448984.

It is an arithmetic number, because the mean of its divisors is an integer number (5578581375).

Almost surely, 2^97691617390 is an apocalyptic number.

97691617390 is a deficient number, since it is larger than the sum of its proper divisors (80822986610).

97691617390 is a wasteful number, since it uses less digits than its factorization.

97691617390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528036.

The product of its (nonzero) digits is 3857868, while the sum is 58.

The spelling of 97691617390 in words is "ninety-seven billion, six hundred ninety-one million, six hundred seventeen thousand, three hundred ninety".