97619972399524 has 81 divisors (see below), whose sum is σ = 176446752156801. Its totient is φ = 47256993594720.

The previous prime is 97619972399447. The next prime is 97619972399531. The reversal of 97619972399524 is 42599327991679.

The square root of 97619972399524 is 9880282.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 82249118956900 + 15370853442624 = 9069130^2 + 3920568^2 .

It is a super-2 number, since 2×97619972399524² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 111311256574 + ... + 111311257450.

Almost surely, 2^{97619972399524} is an apocalyptic number.

97619972399524 is the 9880282-nd square number.

It is an amenable number.

97619972399524 is a deficient number, since it is larger than the sum of its proper divisors (78826779757277).

97619972399524 is an frugal number, since it uses more digits than its factorization.

97619972399524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106 (or 1053 counting only the distinct ones).

The product of its digits is 4166497440, while the sum is 82.

The spelling of 97619972399524 in words is "ninety-seven trillion, six hundred nineteen billion, nine hundred seventy-two million, three hundred ninety-nine thousand, five hundred twenty-four".