1542639891716 has 48 divisors (see below), whose sum is σ = 3391452675072. Its totient is φ = 596440509600.

The previous prime is 1542639891671. The next prime is 1542639891761. The reversal of 1542639891716 is 6171989362451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1542639891671) and next prime (1542639891761).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19076336 + ... + 19157031.

It is an arithmetic number, because the mean of its divisors is an integer number (70655264064).

Almost surely, 2^{1542639891716} is an apocalyptic number.

It is an amenable number.

1542639891716 is an abundant number, since it is smaller than the sum of its proper divisors (1848812783356).

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

1542639891716 is a wasteful number, since it uses less digits than its factorization.

1542639891716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233520 (or 38233518 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 62.

The spelling of 1542639891716 in words is "one trillion, five hundred forty-two billion, six hundred thirty-nine million, eight hundred ninety-one thousand, seven hundred sixteen".