6111987426345 has 128 divisors (see below), whose sum is σ = 10440258048000. Its totient is φ = 3044668290048.

The previous prime is 6111987426299. The next prime is 6111987426359. The reversal of 6111987426345 is 5436247891116.

It is not a de Polignac number, because 6111987426345 - 2¹¹ = 6111987424297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3161916999 + ... + 3161918931.

It is an arithmetic number, because the mean of its divisors is an integer number (81564516000).

Almost surely, 2^{6111987426345} is an apocalyptic number.

It is an amenable number.

6111987426345 is a deficient number, since it is larger than the sum of its proper divisors (4328270621655).

6111987426345 is a wasteful number, since it uses less digits than its factorization.

6111987426345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its digits is 8709120, while the sum is 57.

The spelling of 6111987426345 in words is "six trillion, one hundred eleven billion, nine hundred eighty-seven million, four hundred twenty-six thousand, three hundred forty-five".