61958359476 has 72 divisors (see below), whose sum is σ = 169273674024. Its totient is φ = 18995247360.

The previous prime is 61958359469. The next prime is 61958359481. The reversal of 61958359476 is 67495385916.

61958359476 is a `hidden beast` number, since 6 + 1 + 9 + 583 + 5 + 9 + 47 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3011375376 + 58946984100 = 54876^2 + 242790^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109335 + ... + 368606.

Almost surely, 2^61958359476 is an apocalyptic number.

It is an amenable number.

61958359476 is an abundant number, since it is smaller than the sum of its proper divisors (107315314548).

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

61958359476 is a wasteful number, since it uses less digits than its factorization.

61958359476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478241 (or 478236 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 63.

The spelling of 61958359476 in words is "sixty-one billion, nine hundred fifty-eight million, three hundred fifty-nine thousand, four hundred seventy-six".