2151442210534 has 4 divisors (see below), whose sum is σ = 3227163315804. Its totient is φ = 1075721105266.

The previous prime is 2151442210501. The next prime is 2151442210549. The reversal of 2151442210534 is 4350122441512.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2151442210534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537860552632 + ... + 537860552635.

It is an arithmetic number, because the mean of its divisors is an integer number (806790828951).

Almost surely, 2^{2151442210534} is an apocalyptic number.

2151442210534 is a deficient number, since it is larger than the sum of its proper divisors (1075721105270).

2151442210534 is a wasteful number, since it uses less digits than its factorization.

2151442210534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075721105269.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 2151442210534 in words is "two trillion, one hundred fifty-one billion, four hundred forty-two million, two hundred ten thousand, five hundred thirty-four".