13557779123458 has 16 divisors (see below), whose sum is σ = 20411892103680. Its totient is φ = 6753822982416.

The previous prime is 13557779123423. The next prime is 13557779123509. The reversal of 13557779123458 is 85432197775531.

It is a junction number, because it is equal to n+sod(n) for n = 13557779123393 and 13557779123402.

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, 1470516 + ... + 5410912.

It is an arithmetic number, because the mean of its divisors is an integer number (1275743256480).

Almost surely, 2^{13557779123458} is an apocalyptic number.

13557779123458 is a deficient number, since it is larger than the sum of its proper divisors (6854112980222).

13557779123458 is a wasteful number, since it uses less digits than its factorization.

13557779123458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946761.

The product of its digits is 222264000, while the sum is 67.

The spelling of 13557779123458 in words is "thirteen trillion, five hundred fifty-seven billion, seven hundred seventy-nine million, one hundred twenty-three thousand, four hundred fifty-eight".