12878492356 has 6 divisors (see below), whose sum is σ = 22537361630. Its totient is φ = 6439246176.

The previous prime is 12878492351. The next prime is 12878492369. The reversal of 12878492356 is 65329487821.

It can be written as a sum of positive squares in only one way, i.e., 12029702400 + 848789956 = 109680^2 + 29134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12878492297 and 12878492306.

It is not an unprimeable number, because it can be changed into a prime (12878492351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609811541 + ... + 1609811548.

Almost surely, 2^12878492356 is an apocalyptic number.

It is an amenable number.

12878492356 is a deficient number, since it is larger than the sum of its proper divisors (9658869274).

12878492356 is a wasteful number, since it uses less digits than its factorization.

12878492356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219623093 (or 3219623091 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 12878492356 in words is "twelve billion, eight hundred seventy-eight million, four hundred ninety-two thousand, three hundred fifty-six".