6437147423556 has 48 divisors (see below), whose sum is σ = 15051053078208. Its totient is φ = 2141282908800.

The previous prime is 6437147423533. The next prime is 6437147423573. The reversal of 6437147423556 is 6553247417346.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6437147423496 and 6437147423505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30348286 + ... + 30559658.

It is an arithmetic number, because the mean of its divisors is an integer number (313563605796).

Almost surely, 2^{6437147423556} is an apocalyptic number.

It is an amenable number.

6437147423556 is an abundant number, since it is smaller than the sum of its proper divisors (8613905654652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6437147423556 is a wasteful number, since it uses less digits than its factorization.

6437147423556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216612 (or 216610 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 57.

The spelling of 6437147423556 in words is "six trillion, four hundred thirty-seven billion, one hundred forty-seven million, four hundred twenty-three thousand, five hundred fifty-six".