61076621088 has 72 divisors (see below), whose sum is σ = 198499025088. Its totient is φ = 17450462592.

The previous prime is 61076621071. The next prime is 61076621129. The reversal of 61076621088 is 88012667016.

It is a happy number.

61076621088 is a `hidden beast` number, since 6 + 10 + 7 + 6 + 621 + 0 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15145956 + ... + 15149987.

It is an arithmetic number, because the mean of its divisors is an integer number (2756930904).

Almost surely, 2^61076621088 is an apocalyptic number.

It is an amenable number.

61076621088 is an abundant number, since it is smaller than the sum of its proper divisors (137422404000).

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

61076621088 is a wasteful number, since it uses less digits than its factorization.

61076621088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30295966 (or 30295955 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 61076621088 in words is "sixty-one billion, seventy-six million, six hundred twenty-one thousand, eighty-eight".