61442397754 has 16 divisors (see below), whose sum is σ = 96176078208. Its totient is φ = 29383854192.

The previous prime is 61442397739. The next prime is 61442397763. The reversal of 61442397754 is 45779324416.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1353859 + ... + 1398505.

It is an arithmetic number, because the mean of its divisors is an integer number (6011004888).

Almost surely, 2^61442397754 is an apocalyptic number.

61442397754 is a deficient number, since it is larger than the sum of its proper divisors (34733680454).

61442397754 is a wasteful number, since it uses less digits than its factorization.

61442397754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74589.

The product of its digits is 5080320, while the sum is 52.

The spelling of 61442397754 in words is "sixty-one billion, four hundred forty-two million, three hundred ninety-seven thousand, seven hundred fifty-four".