61911504822956 has 24 divisors (see below), whose sum is σ = 109698539213760. Its totient is φ = 30571042989312.

The previous prime is 61911504822901. The next prime is 61911504822971. The reversal of 61911504822956 is 65922840511916.

It is a junction number, because it is equal to n+sod(n) for n = 61911504822895 and 61911504822904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247117316 + ... + 247367723.

It is an arithmetic number, because the mean of its divisors is an integer number (4570772467240).

Almost surely, 2^{61911504822956} is an apocalyptic number.

It is an amenable number.

61911504822956 is a deficient number, since it is larger than the sum of its proper divisors (47787034390804).

61911504822956 is a wasteful number, since it uses less digits than its factorization.

61911504822956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494485433 (or 494485431 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 59.

The spelling of 61911504822956 in words is "sixty-one trillion, nine hundred eleven billion, five hundred four million, eight hundred twenty-two thousand, nine hundred fifty-six".