76621541004 has 96 divisors (see below), whose sum is σ = 207396080640. Its totient is φ = 24417005184.

The previous prime is 76621540967. The next prime is 76621541089. The reversal of 76621541004 is 40014512667.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 76621541004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5340889 + ... + 5355215.

It is an arithmetic number, because the mean of its divisors is an integer number (2160375840).

Almost surely, 2^76621541004 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 76621541004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103698040320).

76621541004 is an abundant number, since it is smaller than the sum of its proper divisors (130774539636).

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

76621541004 is a wasteful number, since it uses less digits than its factorization.

76621541004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16516 (or 16508 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 76621541004 in words is "seventy-six billion, six hundred twenty-one million, five hundred forty-one thousand, four".