61888064432 has 10 divisors (see below), whose sum is σ = 119908124868. Its totient is φ = 30944032208.

The previous prime is 61888064389. The next prime is 61888064561. The reversal of 61888064432 is 23446088816.

It is a happy number.

61888064432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934001998 + ... + 1934002029.

Almost surely, 2^61888064432 is an apocalyptic number.

It is an amenable number.

61888064432 is a deficient number, since it is larger than the sum of its proper divisors (58020060436).

61888064432 is a wasteful number, since it uses less digits than its factorization.

61888064432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868004035 (or 3868004029 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 50.

The spelling of 61888064432 in words is "sixty-one billion, eight hundred eighty-eight million, sixty-four thousand, four hundred thirty-two".