61140512620 has 48 divisors (see below), whose sum is σ = 141376451328. Its totient is φ = 22025120960.

The previous prime is 61140512501. The next prime is 61140512621. The reversal of 61140512620 is 2621504116.

61140512620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61140512621) 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, 1275112 + ... + 1322191.

It is an arithmetic number, because the mean of its divisors is an integer number (2945342736).

Almost surely, 2^61140512620 is an apocalyptic number.

It is an amenable number.

61140512620 is an abundant number, since it is smaller than the sum of its proper divisors (80235938708).

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

61140512620 is a wasteful number, since it uses less digits than its factorization.

61140512620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597430 (or 2597428 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 61140512620 in words is "sixty-one billion, one hundred forty million, five hundred twelve thousand, six hundred twenty".