61847774988516 has 60 divisors (see below), whose sum is σ = 176380691644080. Its totient is φ = 18741749995440.

The previous prime is 61847774988497. The next prime is 61847774988557. The reversal of 61847774988516 is 61588947774816.

61847774988516 is a `hidden beast` number, since 6 + 1 + 8 + 4 + 7 + 7 + 7 + 4 + 98 + 8 + 516 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8676732546 + ... + 8676739673.

It is an arithmetic number, because the mean of its divisors is an integer number (2939678194068).

Almost surely, 2^{61847774988516} is an apocalyptic number.

61847774988516 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61847774988516 is an abundant number, since it is smaller than the sum of its proper divisors (114532916655564).

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

61847774988516 is a wasteful number, since it uses less digits than its factorization.

61847774988516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17353472246 (or 17353472235 counting only the distinct ones).

The product of its digits is 4551966720, while the sum is 81.

The spelling of 61847774988516 in words is "sixty-one trillion, eight hundred forty-seven billion, seven hundred seventy-four million, nine hundred eighty-eight thousand, five hundred sixteen".