1542295739664 has 135 divisors (see below), whose sum is σ = 4483238911333. Its totient is φ = 513964455552.

The previous prime is 1542295739657. The next prime is 1542295739681. The reversal of 1542295739664 is 4669375922451.

It is a happy number.

The square root of 1542295739664 is 1241892.

It is a perfect power (a square), and thus also a powerful number.

1542295739664 is a `hidden beast` number, since 1 + 54 + 2 + 2 + 9 + 573 + 9 + 6 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 334477155600 + 1207818584064 = 578340^2 + 1099008^2 .

It is a super-2 number, since 2×1542295739664² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 402371092 + ... + 402374924.

Almost surely, 2^{1542295739664} is an apocalyptic number.

1542295739664 is the 1241892-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542295739664

1542295739664 is an abundant number, since it is smaller than the sum of its proper divisors (2940943171669).

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

1542295739664 is an frugal number, since it uses more digits than its factorization.

1542295739664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7698 (or 3838 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 63.

The spelling of 1542295739664 in words is "one trillion, five hundred forty-two billion, two hundred ninety-five million, seven hundred thirty-nine thousand, six hundred sixty-four".