97801882156351 has 4 divisors (see below), whose sum is σ = 100187293916304. Its totient is φ = 95416470396400.

The previous prime is 97801882156301. The next prime is 97801882156357. The reversal of 97801882156351 is 15365128810879.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97801882156351 - 2²⁷ = 97801747938623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97801882156357) 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, 1192705879915 + ... + 1192705879996.

It is an arithmetic number, because the mean of its divisors is an integer number (25046823479076).

Almost surely, 2^{97801882156351} is an apocalyptic number.

97801882156351 is a deficient number, since it is larger than the sum of its proper divisors (2385411759953).

97801882156351 is a wasteful number, since it uses less digits than its factorization.

97801882156351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385411759952.

The product of its (nonzero) digits is 29030400, while the sum is 64.

The spelling of 97801882156351 in words is "ninety-seven trillion, eight hundred one billion, eight hundred eighty-two million, one hundred fifty-six thousand, three hundred fifty-one".