61538622596 has 24 divisors (see below), whose sum is σ = 117497856000. Its totient is φ = 27968522400.

The previous prime is 61538622583. The next prime is 61538622623. The reversal of 61538622596 is 69522683516.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 275030 + ... + 445778.

It is an arithmetic number, because the mean of its divisors is an integer number (4895744000).

Almost surely, 2^61538622596 is an apocalyptic number.

It is an amenable number.

61538622596 is a deficient number, since it is larger than the sum of its proper divisors (55959233404).

61538622596 is a wasteful number, since it uses less digits than its factorization.

61538622596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178955 (or 178953 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 53.

The spelling of 61538622596 in words is "sixty-one billion, five hundred thirty-eight million, six hundred twenty-two thousand, five hundred ninety-six".