61768234388 has 48 divisors (see below), whose sum is σ = 127281772800. Its totient is φ = 26215029792.

The previous prime is 61768234387. The next prime is 61768234397. The reversal of 61768234388 is 88343286716.

61768234388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61768234387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77231 + ... + 359862.

It is an arithmetic number, because the mean of its divisors is an integer number (2651703600).

Almost surely, 2^61768234388 is an apocalyptic number.

It is an amenable number.

61768234388 is an abundant number, since it is smaller than the sum of its proper divisors (65513538412).

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

61768234388 is a wasteful number, since it uses less digits than its factorization.

61768234388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437221 (or 437205 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 56.

The spelling of 61768234388 in words is "sixty-one billion, seven hundred sixty-eight million, two hundred thirty-four thousand, three hundred eighty-eight".