61974092163264 has 56 divisors (see below), whose sum is σ = 168404824782768. Its totient is φ = 20099705564160.

The previous prime is 61974092163251. The next prime is 61974092163283. The reversal of 61974092163264 is 46236129047916.

It is a super-2 number, since 2×61974092163264² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61974092163198 and 61974092163207.

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, 4361908167 + ... + 4361922374.

It is an arithmetic number, because the mean of its divisors is an integer number (3007229013978).

Almost surely, 2^{61974092163264} is an apocalyptic number.

61974092163264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61974092163264 is an abundant number, since it is smaller than the sum of its proper divisors (106430732619504).

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

61974092163264 is a wasteful number, since it uses less digits than its factorization.

61974092163264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8723830593 (or 8723830583 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 61974092163264 in words is "sixty-one trillion, nine hundred seventy-four billion, ninety-two million, one hundred sixty-three thousand, two hundred sixty-four".