97577797876 has 24 divisors (see below), whose sum is σ = 184135831880. Its totient is φ = 44977324032.

The previous prime is 97577797843. The next prime is 97577797901. The reversal of 97577797876 is 67879777579.

It can be written as a sum of positive squares in 4 ways, for example, as 8819088100 + 88758709776 = 93910^2 + 297924^2 .

It is a super-2 number, since 2×97577797876² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97577797796 and 97577797805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180101 + ... + 1260076.

Almost surely, 2^97577797876 is an apocalyptic number.

It is an amenable number.

97577797876 is a deficient number, since it is larger than the sum of its proper divisors (86558034004).

97577797876 is a wasteful number, since it uses less digits than its factorization.

97577797876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440963 (or 2440961 counting only the distinct ones).

The product of its digits is 2287096560, while the sum is 79.

The spelling of 97577797876 in words is "ninety-seven billion, five hundred seventy-seven million, seven hundred ninety-seven thousand, eight hundred seventy-six".