2154460644512 has 72 divisors (see below), whose sum is σ = 4721264856000. Its totient is φ = 966903949440.

The previous prime is 2154460644509. The next prime is 2154460644521.

2154460644512 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 3215762 + ... + 3827537.

It is an arithmetic number, because the mean of its divisors is an integer number (65573123000).

Almost surely, 2^{2154460644512} is an apocalyptic number.

2154460644512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2154460644512 is an abundant number, since it is smaller than the sum of its proper divisors (2566804211488).

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

2154460644512 is a wasteful number, since it uses less digits than its factorization.

2154460644512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7043410 (or 7043391 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

It can be divided in two parts, 2154460 and 644512, that added together give a palindrome (2798972).

The spelling of 2154460644512 in words is "two trillion, one hundred fifty-four billion, four hundred sixty million, six hundred forty-four thousand, five hundred twelve".