61512651232 has 24 divisors (see below), whose sum is σ = 125009583552. Its totient is φ = 29764185600.

The previous prime is 61512651227. The next prime is 61512651269. The reversal of 61512651232 is 23215621516.

It is a super-2 number, since 2×61512651232² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31003369 + ... + 31005352.

It is an arithmetic number, because the mean of its divisors is an integer number (5208732648).

Almost surely, 2^61512651232 is an apocalyptic number.

61512651232 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61512651232 is an abundant number, since it is smaller than the sum of its proper divisors (63496932320).

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

61512651232 is a wasteful number, since it uses less digits than its factorization.

61512651232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62008762 (or 62008754 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The spelling of 61512651232 in words is "sixty-one billion, five hundred twelve million, six hundred fifty-one thousand, two hundred thirty-two".