61975825992 has 96 divisors (see below), whose sum is σ = 177874515000. Its totient is φ = 19459722240.

The previous prime is 61975825987. The next prime is 61975826023. The reversal of 61975825992 is 29952857916.

61975825992 is a `hidden beast` number, since 619 + 7 + 5 + 8 + 2 + 5 + 9 + 9 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22483802916 + 39492023076 = 149946^2 + 198726^2 .

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, 276367 + ... + 447582.

Almost surely, 2^61975825992 is an apocalyptic number.

It is an amenable number.

61975825992 is an abundant number, since it is smaller than the sum of its proper divisors (115898689008).

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

61975825992 is a wasteful number, since it uses less digits than its factorization.

61975825992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724031 (or 724024 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 63.

The spelling of 61975825992 in words is "sixty-one billion, nine hundred seventy-five million, eight hundred twenty-five thousand, nine hundred ninety-two".