97640962641 has 12 divisors (see below), whose sum is σ = 141881480832. Its totient is φ = 64704189816.

The previous prime is 97640962631. The next prime is 97640962649. The reversal of 97640962641 is 14626904679.

It is a happy number.

97640962641 is a `hidden beast` number, since 9 + 7 + 6 + 4 + 0 + 9 + 626 + 4 + 1 = 666.

It is not a de Polignac number, because 97640962641 - 2⁶ = 97640962577 is a prime.

It is a super-2 number, since 2×97640962641² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97640962649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32480521 + ... + 32483526.

It is an arithmetic number, because the mean of its divisors is an integer number (11823456736).

Almost surely, 2^97640962641 is an apocalyptic number.

It is an amenable number.

97640962641 is a deficient number, since it is larger than the sum of its proper divisors (44240518191).

97640962641 is a wasteful number, since it uses less digits than its factorization.

97640962641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64964220 (or 64964217 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 97640962641 in words is "ninety-seven billion, six hundred forty million, nine hundred sixty-two thousand, six hundred forty-one".