97975086378 has 16 divisors (see below), whose sum is σ = 211023263136. Its totient is φ = 30146180400.

The previous prime is 97975086361. The next prime is 97975086401. The reversal of 97975086378 is 87368057979.

It is a super-2 number, since 2×97975086378² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628045348 + ... + 628045503.

It is an arithmetic number, because the mean of its divisors is an integer number (13188953946).

Almost surely, 2^97975086378 is an apocalyptic number.

97975086378 is an abundant number, since it is smaller than the sum of its proper divisors (113048176758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97975086378 is a wasteful number, since it uses less digits than its factorization.

97975086378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256090869.

The product of its (nonzero) digits is 160030080, while the sum is 69.

The spelling of 97975086378 in words is "ninety-seven billion, nine hundred seventy-five million, eighty-six thousand, three hundred seventy-eight".