61690117618052 has 48 divisors (see below), whose sum is σ = 134604155427840. Its totient is φ = 24033765194400.

The previous prime is 61690117618049. The next prime is 61690117618081. The reversal of 61690117618052 is 25081671109616.

61690117618052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×61690117618052⁴ (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 61690117617985 and 61690117618003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87152 + ... + 11108007.

It is an arithmetic number, because the mean of its divisors is an integer number (2804253238080).

Almost surely, 2^{61690117618052} is an apocalyptic number.

It is an amenable number.

61690117618052 is an abundant number, since it is smaller than the sum of its proper divisors (72914037809788).

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

61690117618052 is a wasteful number, since it uses less digits than its factorization.

61690117618052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11213072 (or 11213070 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 53.

The spelling of 61690117618052 in words is "sixty-one trillion, six hundred ninety billion, one hundred seventeen million, six hundred eighteen thousand, fifty-two".