61768531942 has 16 divisors (see below), whose sum is σ = 99809764992. Its totient is φ = 28500030720.

The previous prime is 61768531939. The next prime is 61768531963. The reversal of 61768531942 is 24913586716.

It is a self number, because there is not a number n which added to its sum of digits gives 61768531942.

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, 266038 + ... + 440809.

It is an arithmetic number, because the mean of its divisors is an integer number (6238110312).

Almost surely, 2^61768531942 is an apocalyptic number.

61768531942 is a deficient number, since it is larger than the sum of its proper divisors (38041233050).

61768531942 is a wasteful number, since it uses less digits than its factorization.

61768531942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710223.

The product of its digits is 2177280, while the sum is 52.

The spelling of 61768531942 in words is "sixty-one billion, seven hundred sixty-eight million, five hundred thirty-one thousand, nine hundred forty-two".