77379842736 has 90 divisors (see below), whose sum is σ = 251912206572. Its totient is φ = 22108524480.

The previous prime is 77379842723. The next prime is 77379842759. The reversal of 77379842736 is 63724897377.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5476210 + ... + 5490321.

Almost surely, 2^77379842736 is an apocalyptic number.

It is an amenable number.

77379842736 is an abundant number, since it is smaller than the sum of its proper divisors (174532363836).

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

77379842736 is a wasteful number, since it uses less digits than its factorization.

77379842736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10966559 (or 10966543 counting only the distinct ones).

The product of its digits is 74680704, while the sum is 63.

The spelling of 77379842736 in words is "seventy-seven billion, three hundred seventy-nine million, eight hundred forty-two thousand, seven hundred thirty-six".