780478015632 has 60 divisors (see below), whose sum is σ = 2345416084656. Its totient is φ = 222993718080.

The previous prime is 780478015627. The next prime is 780478015693. The reversal of 780478015632 is 236510874087.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165915594 + ... + 165920297.

Almost surely, 2^780478015632 is an apocalyptic number.

It is an amenable number.

780478015632 is an abundant number, since it is smaller than the sum of its proper divisors (1564938069024).

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

780478015632 is a wasteful number, since it uses less digits than its factorization.

780478015632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331835916 (or 331835903 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 780478015632 in words is "seven hundred eighty billion, four hundred seventy-eight million, fifteen thousand, six hundred thirty-two".