542475178947 has 48 divisors (see below), whose sum is σ = 845742643200. Its totient is φ = 333083197440.

The previous prime is 542475178913. The next prime is 542475178979. The reversal of 542475178947 is 749871574245.

542475178947 is a `hidden beast` number, since 5 + 4 + 2 + 475 + 1 + 78 + 94 + 7 = 666.

It is not a de Polignac number, because 542475178947 - 2²⁴ = 542458401731 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (542475178997) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121058947 + ... + 121063427.

It is an arithmetic number, because the mean of its divisors is an integer number (17619638400).

Almost surely, 2^542475178947 is an apocalyptic number.

542475178947 is a deficient number, since it is larger than the sum of its proper divisors (303267464253).

542475178947 is a wasteful number, since it uses less digits than its factorization.

542475178947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6588 (or 6585 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 63.

The spelling of 542475178947 in words is "five hundred forty-two billion, four hundred seventy-five million, one hundred seventy-eight thousand, nine hundred forty-seven".