780429915345 has 32 divisors (see below), whose sum is σ = 1277804132352. Its totient is φ = 406525033152.

The previous prime is 780429915313. The next prime is 780429915359. The reversal of 780429915345 is 543519924087.

It is not a de Polignac number, because 780429915345 - 2⁵ = 780429915313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16438632 + ... + 16486038.

It is an arithmetic number, because the mean of its divisors is an integer number (39931379136).

Almost surely, 2^780429915345 is an apocalyptic number.

It is an amenable number.

780429915345 is a deficient number, since it is larger than the sum of its proper divisors (497374217007).

780429915345 is a wasteful number, since it uses less digits than its factorization.

780429915345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72981.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 780429915345 in words is "seven hundred eighty billion, four hundred twenty-nine million, nine hundred fifteen thousand, three hundred forty-five".