75277580808 has 64 divisors (see below), whose sum is σ = 196911912960. Its totient is φ = 23936083776.

The previous prime is 75277580771. The next prime is 75277580857. The reversal of 75277580808 is 80808577257.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16791 + ... + 388377.

It is an arithmetic number, because the mean of its divisors is an integer number (3076748640).

Almost surely, 2^75277580808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75277580808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98455956480).

75277580808 is an abundant number, since it is smaller than the sum of its proper divisors (121634332152).

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

75277580808 is a wasteful number, since it uses less digits than its factorization.

75277580808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371986 (or 371982 counting only the distinct ones).

The product of its (nonzero) digits is 8780800, while the sum is 57.

It can be divided in two parts, 75277 and 580808, that added together give a triangular number (656085 = T₁₁₄₅).

The spelling of 75277580808 in words is "seventy-five billion, two hundred seventy-seven million, five hundred eighty thousand, eight hundred eight".