78136326470 has 8 divisors (see below), whose sum is σ = 140645387664. Its totient is φ = 31254530584.

The previous prime is 78136326439. The next prime is 78136326481. The reversal of 78136326470 is 7462363187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78136326470² (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 3 ways as a sum of consecutive naturals, for example, 3906816314 + ... + 3906816333.

It is an arithmetic number, because the mean of its divisors is an integer number (17580673458).

Almost surely, 2^78136326470 is an apocalyptic number.

78136326470 is a deficient number, since it is larger than the sum of its proper divisors (62509061194).

78136326470 is a wasteful number, since it uses less digits than its factorization.

78136326470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7813632654.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 78136326470 in words is "seventy-eight billion, one hundred thirty-six million, three hundred twenty-six thousand, four hundred seventy".