2154362456503 has 16 divisors (see below), whose sum is σ = 2229911942400. Its totient is φ = 2079195955200.

The previous prime is 2154362456473. The next prime is 2154362456507. The reversal of 2154362456503 is 3056542634512.

It is a cyclic number.

It is not a de Polignac number, because 2154362456503 - 2²⁵ = 2154328902071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154362456507) 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, 28928251 + ... + 29002627.

It is an arithmetic number, because the mean of its divisors is an integer number (139369496400).

Almost surely, 2^{2154362456503} is an apocalyptic number.

2154362456503 is a deficient number, since it is larger than the sum of its proper divisors (75549485897).

2154362456503 is a wasteful number, since it uses less digits than its factorization.

2154362456503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76938.

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 2154362456503 in words is "two trillion, one hundred fifty-four billion, three hundred sixty-two million, four hundred fifty-six thousand, five hundred three".