61915906958 has 16 divisors (see below), whose sum is σ = 98582279904. Its totient is φ = 29064230400.

The previous prime is 61915906939. The next prime is 61915906973. The reversal of 61915906958 is 85960951916.

It is a junction number, because it is equal to n+sod(n) for n = 61915906897 and 61915906906.

It is a congruent number.

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, 2257010 + ... + 2284277.

It is an arithmetic number, because the mean of its divisors is an integer number (6161392494).

Almost surely, 2^61915906958 is an apocalyptic number.

61915906958 is a deficient number, since it is larger than the sum of its proper divisors (36666372946).

61915906958 is a wasteful number, since it uses less digits than its factorization.

61915906958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541707.

The product of its (nonzero) digits is 5248800, while the sum is 59.

The spelling of 61915906958 in words is "sixty-one billion, nine hundred fifteen million, nine hundred six thousand, nine hundred fifty-eight".