61427271364 has 12 divisors (see below), whose sum is σ = 107499471100. Its totient is φ = 30713136768.

The previous prime is 61427271361. The next prime is 61427271401. The reversal of 61427271364 is 46317272416.

61427271364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11407948864 + 50019322500 = 106808^2 + 223650^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61427271364.

It is not an unprimeable number, because it can be changed into a prime (61427271361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372832 + ... + 511720.

Almost surely, 2^61427271364 is an apocalyptic number.

It is an amenable number.

61427271364 is a deficient number, since it is larger than the sum of its proper divisors (46072199736).

61427271364 is a wasteful number, since it uses less digits than its factorization.

61427271364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249462 (or 249460 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The spelling of 61427271364 in words is "sixty-one billion, four hundred twenty-seven million, two hundred seventy-one thousand, three hundred sixty-four".