61670378034 has 24 divisors (see below), whose sum is σ = 136726576272. Its totient is φ = 20078727480.

The previous prime is 61670378017. The next prime is 61670378039. The reversal of 61670378034 is 43087307616.

It is not an unprimeable number, because it can be changed into a prime (61670378039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39837972 + ... + 39839519.

It is an arithmetic number, because the mean of its divisors is an integer number (5696940678).

Almost surely, 2^61670378034 is an apocalyptic number.

61670378034 is an abundant number, since it is smaller than the sum of its proper divisors (75056198238).

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

61670378034 is a wasteful number, since it uses less digits than its factorization.

61670378034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79677542 (or 79677539 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 61670378034 in words is "sixty-one billion, six hundred seventy million, three hundred seventy-eight thousand, thirty-four".