30778994685924 has 243 divisors, whose sum is σ = 83580980459067. Its totient is φ = 9548393135616.

The previous prime is 30778994685853. The next prime is 30778994685949. The reversal of 30778994685924 is 42958649987703.

The square root of 30778994685924 is 5547882.

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

30778994685924 is a `hidden beast` number, since 3 + 0 + 7 + 7 + 89 + 9 + 468 + 59 + 24 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7020857096100 + 23758137589824 = 2649690^2 + 4874232^2 .

It is a super-2 number, since 2×30778994685924² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 61681351827 + ... + 61681352325.

Almost surely, 2^{30778994685924} is an apocalyptic number.

30778994685924 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30778994685924 is the 5547882-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30778994685924

30778994685924 is an abundant number, since it is smaller than the sum of its proper divisors (52801985773143).

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

30778994685924 is a wasteful number, since it uses less digits than its factorization.

30778994685924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 6584094720, while the sum is 81.

The spelling of 30778994685924 in words is "thirty trillion, seven hundred seventy-eight billion, nine hundred ninety-four million, six hundred eighty-five thousand, nine hundred twenty-four".