2151152421542 has 16 divisors (see below), whose sum is σ = 3367056682080. Its totient is φ = 1028801180352.

The previous prime is 2151152421487. The next prime is 2151152421571. The reversal of 2151152421542 is 2451242511512.

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, 5712584 + ... + 6077492.

It is an arithmetic number, because the mean of its divisors is an integer number (210441042630).

Almost surely, 2^{2151152421542} is an apocalyptic number.

2151152421542 is a deficient number, since it is larger than the sum of its proper divisors (1215904260538).

2151152421542 is a wasteful number, since it uses less digits than its factorization.

2151152421542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493087.

The product of its digits is 32000, while the sum is 35.

The spelling of 2151152421542 in words is "two trillion, one hundred fifty-one billion, one hundred fifty-two million, four hundred twenty-one thousand, five hundred forty-two".