78430256270 has 16 divisors (see below), whose sum is σ = 141390666720. Its totient is φ = 31324056864.

The previous prime is 78430256263. The next prime is 78430256419. The reversal of 78430256270 is 7265203487.

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, 5998850 + ... + 6011909.

It is an arithmetic number, because the mean of its divisors is an integer number (8836916670).

Almost surely, 2^78430256270 is an apocalyptic number.

78430256270 is a deficient number, since it is larger than the sum of its proper divisors (62960410450).

78430256270 is a wasteful number, since it uses less digits than its factorization.

78430256270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12011419.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 78430256270 in words is "seventy-eight billion, four hundred thirty million, two hundred fifty-six thousand, two hundred seventy".