77854948080 has 160 divisors (see below), whose sum is σ = 297046654464. Its totient is φ = 16426533888.

The previous prime is 77854948019. The next prime is 77854948091. The reversal of 77854948080 is 8084945877.

It is a super-2 number, since 2×77854948080² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1760554 + ... + 1804233.

Almost surely, 2^77854948080 is an apocalyptic number.

77854948080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77854948080 is an abundant number, since it is smaller than the sum of its proper divisors (219191706384).

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

77854948080 is a wasteful number, since it uses less digits than its factorization.

77854948080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564823 (or 3564817 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 77854948080 in words is "seventy-seven billion, eight hundred fifty-four million, nine hundred forty-eight thousand, eighty".