616888274752 has 14 divisors (see below), whose sum is σ = 1224137670338. Its totient is φ = 308444137344.

The previous prime is 616888274663. The next prime is 616888274759. The reversal of 616888274752 is 257472888616.

It can be written as a sum of positive squares in only one way, i.e., 585567770176 + 31320504576 = 765224^2 + 176976^2 .

It is a super-2 number, since 2×616888274752² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64), and also a Moran number because the ratio is a prime number: 9638879293 = 616888274752 / (6 + 1 + 6 + 8 + 8 + 8 + 2 + 7 + 4 + 7 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616888274759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4819439583 + ... + 4819439710.

Almost surely, 2^616888274752 is an apocalyptic number.

It is an amenable number.

616888274752 is a deficient number, since it is larger than the sum of its proper divisors (607249395586).

616888274752 is an equidigital number, since it uses as much as digits as its factorization.

616888274752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638879305 (or 9638879295 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 64.

The spelling of 616888274752 in words is "six hundred sixteen billion, eight hundred eighty-eight million, two hundred seventy-four thousand, seven hundred fifty-two".