54195390129 has 16 divisors (see below), whose sum is σ = 73917704448. Its totient is φ = 35304162432.

The previous prime is 54195390113. The next prime is 54195390131. The reversal of 54195390129 is 92109359145.

It is not a de Polignac number, because 54195390129 - 2⁴ = 54195390113 is a prime.

It is a super-2 number, since 2×54195390129² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54195390229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224482 + ... + 398475.

It is an arithmetic number, because the mean of its divisors is an integer number (4619856528).

Almost surely, 2^54195390129 is an apocalyptic number.

It is an amenable number.

54195390129 is a deficient number, since it is larger than the sum of its proper divisors (19722314319).

54195390129 is a wasteful number, since it uses less digits than its factorization.

54195390129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623624.

The product of its (nonzero) digits is 437400, while the sum is 48.

The spelling of 54195390129 in words is "fifty-four billion, one hundred ninety-five million, three hundred ninety thousand, one hundred twenty-nine".