61444444504 has 16 divisors (see below), whose sum is σ = 115266755520. Its totient is φ = 30706643040.

The previous prime is 61444444493. The next prime is 61444444507. The reversal of 61444444504 is 40544444416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61444444507) 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, 1930632 + ... + 1962199.

It is an arithmetic number, because the mean of its divisors is an integer number (7204172220).

Almost surely, 2^61444444504 is an apocalyptic number.

It is an amenable number.

61444444504 is a deficient number, since it is larger than the sum of its proper divisors (53822311016).

61444444504 is a wasteful number, since it uses less digits than its factorization.

61444444504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894810 (or 3894806 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 40.

The spelling of 61444444504 in words is "sixty-one billion, four hundred forty-four million, four hundred forty-four thousand, five hundred four".