2154614144454 has 24 divisors (see below), whose sum is σ = 4668540010992. Its totient is φ = 718172504880.

The previous prime is 2154614144443. The next prime is 2154614144491. The reversal of 2154614144454 is 4544414164512.

2154614144454 is a `hidden beast` number, since 2 + 1 + 5 + 46 + 14 + 144 + 454 = 666.

It is a super-2 number, since 2×2154614144454² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2269929 + ... + 3076004.

It is an arithmetic number, because the mean of its divisors is an integer number (194522500458).

Almost surely, 2^{2154614144454} is an apocalyptic number.

2154614144454 is an abundant number, since it is smaller than the sum of its proper divisors (2513925866538).

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

2154614144454 is a wasteful number, since it uses less digits than its factorization.

2154614144454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5368332 (or 5368329 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 45.

The spelling of 2154614144454 in words is "two trillion, one hundred fifty-four billion, six hundred fourteen million, one hundred forty-four thousand, four hundred fifty-four".