61266879283720 has 96 divisors (see below), whose sum is σ = 159496421515200. Its totient is φ = 21106293310080.

The previous prime is 61266879283681. The next prime is 61266879283781. The reversal of 61266879283720 is 2738297866216.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333025044 + ... + 333208963.

It is an arithmetic number, because the mean of its divisors is an integer number (1661421057450).

Almost surely, 2^{61266879283720} is an apocalyptic number.

It is an amenable number.

61266879283720 is an abundant number, since it is smaller than the sum of its proper divisors (98229542231480).

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

61266879283720 is a wasteful number, since it uses less digits than its factorization.

61266879283720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666234059 (or 666234044 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 67.

The spelling of 61266879283720 in words is "sixty-one trillion, two hundred sixty-six billion, eight hundred seventy-nine million, two hundred eighty-three thousand, seven hundred twenty".