77530803005078 has 16 divisors (see below), whose sum is σ = 117009774927360. Its totient is φ = 38527781255400.

The previous prime is 77530803005069. The next prime is 77530803005189. The reversal of 77530803005078 is 87050030803577.

It is a super-2 number, since 2×77530803005078² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 58483358 + ... + 59794353.

It is an arithmetic number, because the mean of its divisors is an integer number (7313110932960).

Almost surely, 2^{77530803005078} is an apocalyptic number.

77530803005078 is a deficient number, since it is larger than the sum of its proper divisors (39478971922282).

77530803005078 is a wasteful number, since it uses less digits than its factorization.

77530803005078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118279723.

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 77530803005078 in words is "seventy-seven trillion, five hundred thirty billion, eight hundred three million, five thousand, seventy-eight".