61472577784 has 64 divisors (see below), whose sum is σ = 118118448000. Its totient is φ = 29984947200.

The previous prime is 61472577781. The next prime is 61472577791. The reversal of 61472577784 is 48777527416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61472577781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54448132 + ... + 54449260.

It is an arithmetic number, because the mean of its divisors is an integer number (1845600750).

Almost surely, 2^61472577784 is an apocalyptic number.

It is an amenable number.

61472577784 is a deficient number, since it is larger than the sum of its proper divisors (56645870216).

61472577784 is a wasteful number, since it uses less digits than its factorization.

61472577784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168 (or 2164 counting only the distinct ones).

The product of its digits is 18439680, while the sum is 58.

The spelling of 61472577784 in words is "sixty-one billion, four hundred seventy-two million, five hundred seventy-seven thousand, seven hundred eighty-four".