76558621380 has 24 divisors (see below), whose sum is σ = 214364140032. Its totient is φ = 20415632352.

The previous prime is 76558621351. The next prime is 76558621393. The reversal of 76558621380 is 8312685567.

It is a happy number.

It is a super-2 number, since 2×76558621380² (a number of 23 digits) contains 22 as substring.

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, 637988452 + ... + 637988571.

It is an arithmetic number, because the mean of its divisors is an integer number (8931839168).

Almost surely, 2^76558621380 is an apocalyptic number.

It is an amenable number.

76558621380 is an abundant number, since it is smaller than the sum of its proper divisors (137805518652).

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

76558621380 is a wasteful number, since it uses less digits than its factorization.

76558621380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275977035 (or 1275977033 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 76558621380 in words is "seventy-six billion, five hundred fifty-eight million, six hundred twenty-one thousand, three hundred eighty".