1542711540021 has 8 divisors (see below), whose sum is σ = 2070050304864. Its totient is φ = 1021923567600.

The previous prime is 1542711540001. The next prime is 1542711540079. The reversal of 1542711540021 is 1200451172451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1542711540021 - 2²⁶ = 1542644431157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542711540001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637697555 + ... + 1637698496.

It is an arithmetic number, because the mean of its divisors is an integer number (258756288108).

Almost surely, 2^{1542711540021} is an apocalyptic number.

It is an amenable number.

1542711540021 is a deficient number, since it is larger than the sum of its proper divisors (527338764843).

1542711540021 is a wasteful number, since it uses less digits than its factorization.

1542711540021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275396211.

The product of its (nonzero) digits is 11200, while the sum is 33.

The spelling of 1542711540021 in words is "one trillion, five hundred forty-two billion, seven hundred eleven million, five hundred forty thousand, twenty-one".