61942358372 has 6 divisors (see below), whose sum is σ = 108399127158. Its totient is φ = 30971179184.

The previous prime is 61942358371. The next prime is 61942358399. The reversal of 61942358372 is 27385324916.

It can be written as a sum of positive squares in only one way, i.e., 53165291776 + 8777066596 = 230576^2 + 93686^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61942358372.

It is not an unprimeable number, because it can be changed into a prime (61942358371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7742794793 + ... + 7742794800.

It is an arithmetic number, because the mean of its divisors is an integer number (18066521193).

Almost surely, 2^61942358372 is an apocalyptic number.

It is an amenable number.

61942358372 is a deficient number, since it is larger than the sum of its proper divisors (46456768786).

61942358372 is a wasteful number, since it uses less digits than its factorization.

61942358372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15485589597 (or 15485589595 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The spelling of 61942358372 in words is "sixty-one billion, nine hundred forty-two million, three hundred fifty-eight thousand, three hundred seventy-two".