542512142240646 has 16 divisors (see below), whose sum is σ = 1086402968460864. Its totient is φ = 180607600083624.

The previous prime is 542512142240581. The next prime is 542512142240759. The reversal of 542512142240646 is 646042241215245.

It is a junction number, because it is equal to n+sod(n) for n = 542512142240595 and 542512142240604.

It is a congruent number.

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, 57445160700 + ... + 57445170143.

It is an arithmetic number, because the mean of its divisors is an integer number (67900185528804).

Almost surely, 2^{542512142240646} is an apocalyptic number.

542512142240646 is an abundant number, since it is smaller than the sum of its proper divisors (543890826220218).

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

542512142240646 is a wasteful number, since it uses less digits than its factorization.

542512142240646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114890331635.

The product of its (nonzero) digits is 3686400, while the sum is 48.

The spelling of 542512142240646 in words is "five hundred forty-two trillion, five hundred twelve billion, one hundred forty-two million, two hundred forty thousand, six hundred forty-six".