780050055507 has 16 divisors (see below), whose sum is σ = 1043191710720. Its totient is φ = 518473209312.

The previous prime is 780050055401. The next prime is 780050055509. The reversal of 780050055507 is 705550050087.

It is a happy number.

It is not a de Polignac number, because 780050055507 - 2³⁵ = 745690317139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (780050055509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055893 + ... + 1635545.

It is an arithmetic number, because the mean of its divisors is an integer number (65199481920).

Almost surely, 2^780050055507 is an apocalyptic number.

780050055507 is a deficient number, since it is larger than the sum of its proper divisors (263141655213).

780050055507 is a wasteful number, since it uses less digits than its factorization.

780050055507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581002.

The product of its (nonzero) digits is 245000, while the sum is 42.

The spelling of 780050055507 in words is "seven hundred eighty billion, fifty million, fifty-five thousand, five hundred seven".