61562042880 has 1280 divisors, whose sum is σ = 249464033280. Its totient is φ = 12768509952.

The previous prime is 61562042879. The next prime is 61562042909. The reversal of 61562042880 is 8824026516.

It is a tau number, because it is divible by the number of its divisors (1280).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 741711319 + ... + 741711401.

It is an arithmetic number, because the mean of its divisors is an integer number (194893776).

Almost surely, 2^61562042880 is an apocalyptic number.

61562042880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61562042880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124732016640).

61562042880 is an abundant number, since it is smaller than the sum of its proper divisors (187901990400).

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

61562042880 is a wasteful number, since it uses less digits than its factorization.

61562042880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 61562042880 in words is "sixty-one billion, five hundred sixty-two million, forty-two thousand, eight hundred eighty".