61074762240 has 80 divisors (see below), whose sum is σ = 195248405088. Its totient is φ = 16286601216.

The previous prime is 61074762197. The next prime is 61074762277. The reversal of 61074762240 is 4226747016.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3968542 + ... + 3983901.

Almost surely, 2^61074762240 is an apocalyptic number.

61074762240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61074762240 is an abundant number, since it is smaller than the sum of its proper divisors (134173642848).

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

61074762240 is an equidigital number, since it uses as much as digits as its factorization.

61074762240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952469 (or 7952453 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 61074762240 in words is "sixty-one billion, seventy-four million, seven hundred sixty-two thousand, two hundred forty".