77908201472 has 52 divisors (see below), whose sum is σ = 156485582016. Its totient is φ = 38782033920.

The previous prime is 77908201457. The next prime is 77908201499. The reversal of 77908201472 is 27410280977.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887897 + ... + 971687.

Almost surely, 2^77908201472 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 77908201472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78242791008).

77908201472 is an abundant number, since it is smaller than the sum of its proper divisors (78577380544).

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

77908201472 is an equidigital number, since it uses as much as digits as its factorization.

77908201472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84042 (or 84020 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 77908201472 in words is "seventy-seven billion, nine hundred eight million, two hundred one thousand, four hundred seventy-two".