61642566274 has 8 divisors (see below), whose sum is σ = 92471116608. Its totient is φ = 30818860740.

The previous prime is 61642566247. The next prime is 61642566313. The reversal of 61642566274 is 47266524616.

61642566274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179222 + ... + 1230385.

It is an arithmetic number, because the mean of its divisors is an integer number (11558889576).

Almost surely, 2^61642566274 is an apocalyptic number.

61642566274 is a deficient number, since it is larger than the sum of its proper divisors (30828550334).

61642566274 is a wasteful number, since it uses less digits than its factorization.

61642566274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422400.

The product of its digits is 2903040, while the sum is 49.

The spelling of 61642566274 in words is "sixty-one billion, six hundred forty-two million, five hundred sixty-six thousand, two hundred seventy-four".