61250857938 has 32 divisors (see below), whose sum is σ = 137460683520. Its totient is φ = 20214802800.

The previous prime is 61250857919. The next prime is 61250857949. The reversal of 61250857938 is 83975805216.

61250857938 is a `hidden beast` number, since 6 + 12 + 50 + 8 + 579 + 3 + 8 = 666.

It is a super-2 number, since 2×61250857938² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5609770 + ... + 5620677.

It is an arithmetic number, because the mean of its divisors is an integer number (4295646360).

Almost surely, 2^61250857938 is an apocalyptic number.

61250857938 is an abundant number, since it is smaller than the sum of its proper divisors (76209825582).

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

61250857938 is a wasteful number, since it uses less digits than its factorization.

61250857938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11230559 (or 11230553 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 61250857938 in words is "sixty-one billion, two hundred fifty million, eight hundred fifty-seven thousand, nine hundred thirty-eight".