1054231994569 has 16 divisors (see below), whose sum is σ = 1215336427200. Its totient is φ = 906293710656.

The previous prime is 1054231994551. The next prime is 1054231994581. The reversal of 1054231994569 is 9654991324501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1054231994569 - 2⁵ = 1054231994537 is a prime.

It is a super-2 number, since 2×1054231994569² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1054231994539) 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, 36156154 + ... + 36185299.

It is an arithmetic number, because the mean of its divisors is an integer number (75958526700).

Almost surely, 2^{1054231994569} is an apocalyptic number.

1054231994569 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1054231994569 is a deficient number, since it is larger than the sum of its proper divisors (161104432631).

1054231994569 is a wasteful number, since it uses less digits than its factorization.

1054231994569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72341544.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 1054231994569 in words is "one trillion, fifty-four billion, two hundred thirty-one million, nine hundred ninety-four thousand, five hundred sixty-nine".