61252954464 has 96 divisors (see below), whose sum is σ = 175529670624. Its totient is φ = 18588856320.

The previous prime is 61252954463. The next prime is 61252954489. The reversal of 61252954464 is 46445925216.

61252954464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61252954463) 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, 245067 + ... + 427274.

It is an arithmetic number, because the mean of its divisors is an integer number (1828434069).

Almost surely, 2^61252954464 is an apocalyptic number.

It is an amenable number.

61252954464 is an abundant number, since it is smaller than the sum of its proper divisors (114276716160).

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

61252954464 is a wasteful number, since it uses less digits than its factorization.

61252954464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672440 (or 672432 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 61252954464 in words is "sixty-one billion, two hundred fifty-two million, nine hundred fifty-four thousand, four hundred sixty-four".