97951935691 has 8 divisors (see below), whose sum is σ = 101115782144. Its totient is φ = 94788345960.

The previous prime is 97951935677. The next prime is 97951935737. The reversal of 97951935691 is 19653915979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97951935691 - 2¹⁹ = 97951411403 is a prime.

It is a super-2 number, since 2×97951935691² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97951935391) 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, 982360 + ... + 1077466.

It is an arithmetic number, because the mean of its divisors is an integer number (12639472768).

Almost surely, 2^97951935691 is an apocalyptic number.

97951935691 is a deficient number, since it is larger than the sum of its proper divisors (3163846453).

97951935691 is a wasteful number, since it uses less digits than its factorization.

97951935691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128361.

The product of its digits is 20667150, while the sum is 64.

The spelling of 97951935691 in words is "ninety-seven billion, nine hundred fifty-one million, nine hundred thirty-five thousand, six hundred ninety-one".