61057788260 has 48 divisors (see below), whose sum is σ = 146555342976. Its totient is φ = 20931720192.

The previous prime is 61057788229. The next prime is 61057788271. The reversal of 61057788260 is 6288775016.

It is a junction number, because it is equal to n+sod(n) for n = 61057788199 and 61057788208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1582964 + ... + 1621076.

It is an arithmetic number, because the mean of its divisors is an integer number (3053236312).

Almost surely, 2^61057788260 is an apocalyptic number.

It is an amenable number.

61057788260 is an abundant number, since it is smaller than the sum of its proper divisors (85497554716).

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

61057788260 is a wasteful number, since it uses less digits than its factorization.

61057788260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49572 (or 49570 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 61057788260 in words is "sixty-one billion, fifty-seven million, seven hundred eighty-eight thousand, two hundred sixty".