2153043552534 has 16 divisors (see below), whose sum is σ = 4921242405888. Its totient is φ = 615155300712.

The previous prime is 2153043552511. The next prime is 2153043552641. The reversal of 2153043552534 is 4352553403512.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 51262941727 = 2153043552534 / (2 + 1 + 5 + 3 + 0 + 4 + 3 + 5 + 5 + 2 + 5 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25631470822 + ... + 25631470905.

It is an arithmetic number, because the mean of its divisors is an integer number (307577650368).

Almost surely, 2^{2153043552534} is an apocalyptic number.

2153043552534 is an abundant number, since it is smaller than the sum of its proper divisors (2768198853354).

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

2153043552534 is a wasteful number, since it uses less digits than its factorization.

2153043552534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51262941739.

The product of its (nonzero) digits is 1080000, while the sum is 42.

The spelling of 2153043552534 in words is "two trillion, one hundred fifty-three billion, forty-three million, five hundred fifty-two thousand, five hundred thirty-four".