78277805030 has 16 divisors (see below), whose sum is σ = 140903252784. Its totient is φ = 31310410080.

The previous prime is 78277805029. The next prime is 78277805059. The reversal of 78277805030 is 3050877287.

It is a happy number.

It is a super-2 number, since 2×78277805030² (a number of 23 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, 744824 + ... + 843396.

It is an arithmetic number, because the mean of its divisors is an integer number (8806453299).

Almost surely, 2^78277805030 is an apocalyptic number.

78277805030 is a deficient number, since it is larger than the sum of its proper divisors (62625447754).

78277805030 is a wasteful number, since it uses less digits than its factorization.

78277805030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177991.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 78277805030 in words is "seventy-eight billion, two hundred seventy-seven million, eight hundred five thousand, thirty".