61579221058 has 32 divisors (see below), whose sum is σ = 94762628352. Its totient is φ = 30004128000.

The previous prime is 61579221007. The next prime is 61579221059. The reversal of 61579221058 is 85012297516.

It is a super-2 number, since 2×61579221058² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61579220999 and 61579221017.

It is not an unprimeable number, because it can be changed into a prime (61579221059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4536810 + ... + 4550362.

It is an arithmetic number, because the mean of its divisors is an integer number (2961332136).

Almost surely, 2^61579221058 is an apocalyptic number.

61579221058 is a deficient number, since it is larger than the sum of its proper divisors (33183407294).

61579221058 is a wasteful number, since it uses less digits than its factorization.

61579221058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14010.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 61579221058 in words is "sixty-one billion, five hundred seventy-nine million, two hundred twenty-one thousand, fifty-eight".