54129170809506 has 16 divisors (see below), whose sum is σ = 116585906359104. Its totient is φ = 16655129479824.

The previous prime is 54129170809477. The next prime is 54129170809541. The reversal of 54129170809506 is 60590807192145.

It is a happy 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, 346981864086 + ... + 346981864241.

It is an arithmetic number, because the mean of its divisors is an integer number (7286619147444).

Almost surely, 2^{54129170809506} is an apocalyptic number.

54129170809506 is an abundant number, since it is smaller than the sum of its proper divisors (62456735549598).

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

54129170809506 is a wasteful number, since it uses less digits than its factorization.

54129170809506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693963728345.

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 54129170809506 in words is "fifty-four trillion, one hundred twenty-nine billion, one hundred seventy million, eight hundred nine thousand, five hundred six".