61274316378 has 32 divisors (see below), whose sum is σ = 133727808960. Its totient is φ = 18562642560.

The previous prime is 61274316347. The next prime is 61274316403. The reversal of 61274316378 is 87361347216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101376 + ... + 364452.

It is an arithmetic number, because the mean of its divisors is an integer number (4178994030).

Almost surely, 2^61274316378 is an apocalyptic number.

61274316378 is an abundant number, since it is smaller than the sum of its proper divisors (72453492582).

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

61274316378 is a wasteful number, since it uses less digits than its factorization.

61274316378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266622.

The product of its digits is 1016064, while the sum is 48.

The spelling of 61274316378 in words is "sixty-one billion, two hundred seventy-four million, three hundred sixteen thousand, three hundred seventy-eight".