61874326728 has 96 divisors (see below), whose sum is σ = 178521688800. Its totient is φ = 19303812864.

The previous prime is 61874326727. The next prime is 61874326763. The reversal of 61874326728 is 82762347816.

61874326728 is a `hidden beast` number, since 6 + 187 + 432 + 6 + 7 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (61874326727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158925 + ... + 386012.

It is an arithmetic number, because the mean of its divisors is an integer number (1859600925).

Almost surely, 2^61874326728 is an apocalyptic number.

It is an amenable number.

61874326728 is an abundant number, since it is smaller than the sum of its proper divisors (116647362072).

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

61874326728 is a wasteful number, since it uses less digits than its factorization.

61874326728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545051 (or 545044 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 61874326728 in words is "sixty-one billion, eight hundred seventy-four million, three hundred twenty-six thousand, seven hundred twenty-eight".