97432187853 has 288 divisors, whose sum is σ = 191686494720. Its totient is φ = 43469395200.

The previous prime is 97432187843. The next prime is 97432187857. The reversal of 97432187853 is 35878123479.

It is not a de Polignac number, because 97432187853 - 2⁵ = 97432187821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 97432187793 and 97432187802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97432187857) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 294356898 + ... + 294357228.

Almost surely, 2^97432187853 is an apocalyptic number.

It is an amenable number.

97432187853 is a deficient number, since it is larger than the sum of its proper divisors (94254306867).

97432187853 is a wasteful number, since it uses less digits than its factorization.

97432187853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 451 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 57.

The spelling of 97432187853 in words is "ninety-seven billion, four hundred thirty-two million, one hundred eighty-seven thousand, eight hundred fifty-three".