1542994596864 has 704 divisors, whose sum is σ = 5402853765120. Its totient is φ = 425801318400.

The previous prime is 1542994596859. The next prime is 1542994596889. The reversal of 1542994596864 is 4686954992451.

1542994596864 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 99 + 459 + 6 + 86 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 1542994596792 and 1542994596801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1081284919 + ... + 1081286345.

Almost surely, 2^{1542994596864} is an apocalyptic number.

1542994596864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542994596864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2701426882560).

1542994596864 is an abundant number, since it is smaller than the sum of its proper divisors (3859859168256).

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

1542994596864 is a wasteful number, since it uses less digits than its factorization.

1542994596864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1627 counting only the distinct ones).

The product of its digits is 671846400, while the sum is 72.

The spelling of 1542994596864 in words is "one trillion, five hundred forty-two billion, nine hundred ninety-four million, five hundred ninety-six thousand, eight hundred sixty-four".