13012778734 has 8 divisors (see below), whose sum is σ = 19521225360. Its totient is φ = 6505703616.

The previous prime is 13012778717. The next prime is 13012778743. The reversal of 13012778734 is 43787721031.

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

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, 318819 + ... + 357310.

It is an arithmetic number, because the mean of its divisors is an integer number (2440153170).

Almost surely, 2^13012778734 is an apocalyptic number.

13012778734 is a deficient number, since it is larger than the sum of its proper divisors (6508446626).

13012778734 is an equidigital number, since it uses as much as digits as its factorization.

13012778734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685754.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 13012778734 in words is "thirteen billion, twelve million, seven hundred seventy-eight thousand, seven hundred thirty-four".