61266848280 has 64 divisors (see below), whose sum is σ = 200509689600. Its totient is φ = 14852568960.

The previous prime is 61266848273. The next prime is 61266848309. The reversal of 61266848280 is 8284866216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23205820 + ... + 23208459.

It is an arithmetic number, because the mean of its divisors is an integer number (3132963900).

Almost surely, 2^61266848280 is an apocalyptic number.

61266848280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61266848280 is an abundant number, since it is smaller than the sum of its proper divisors (139242841320).

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

61266848280 is a wasteful number, since it uses less digits than its factorization.

61266848280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46414304 (or 46414300 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The spelling of 61266848280 in words is "sixty-one billion, two hundred sixty-six million, eight hundred forty-eight thousand, two hundred eighty".