97902013501 has 4 divisors (see below), whose sum is σ = 99506964604. Its totient is φ = 96297062400.

The previous prime is 97902013493. The next prime is 97902013511. The reversal of 97902013501 is 10531020979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10531020979 = 59 ⋅178491881.

It can be written as a sum of positive squares in 2 ways, for example, as 18516133476 + 79385880025 = 136074^2 + 281755^2 .

It is a cyclic number.

It is not a de Polignac number, because 97902013501 - 2³ = 97902013493 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 (97902013511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802475460 + ... + 802475581.

It is an arithmetic number, because the mean of its divisors is an integer number (24876741151).

Almost surely, 2^97902013501 is an apocalyptic number.

It is an amenable number.

97902013501 is a deficient number, since it is larger than the sum of its proper divisors (1604951103).

97902013501 is a wasteful number, since it uses less digits than its factorization.

97902013501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604951102.

The product of its (nonzero) digits is 17010, while the sum is 37.

The spelling of 97902013501 in words is "ninety-seven billion, nine hundred two million, thirteen thousand, five hundred one".