1572454622640 has 160 divisors (see below), whose sum is σ = 5318245610496. Its totient is φ = 381165998080.

The previous prime is 1572454622639. The next prime is 1572454622681. The reversal of 1572454622640 is 462264542751.

It is a super-2 number, since 2×1572454622640² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1572454622640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39308089 + ... + 39348071.

Almost surely, 2^{1572454622640} is an apocalyptic number.

1572454622640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1572454622640 is an abundant number, since it is smaller than the sum of its proper divisors (3745790987856).

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

1572454622640 is a wasteful number, since it uses less digits than its factorization.

1572454622640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54907 (or 54901 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 1572454622640 in words is "one trillion, five hundred seventy-two billion, four hundred fifty-four million, six hundred twenty-two thousand, six hundred forty".