76244745980 has 24 divisors (see below), whose sum is σ = 172430426112. Its totient is φ = 28151906112.

The previous prime is 76244745979. The next prime is 76244746001. The reversal of 76244745980 is 8954744267.

It is a happy number.

It is a super-2 number, since 2×76244745980² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146624252 + ... + 146624771.

It is an arithmetic number, because the mean of its divisors is an integer number (7184601088).

Almost surely, 2^76244745980 is an apocalyptic number.

It is an amenable number.

76244745980 is an abundant number, since it is smaller than the sum of its proper divisors (96185680132).

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

76244745980 is a wasteful number, since it uses less digits than its factorization.

76244745980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293249045 (or 293249043 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 76244745980 in words is "seventy-six billion, two hundred forty-four million, seven hundred forty-five thousand, nine hundred eighty".