1572977505856 has 63 divisors (see below), whose sum is σ = 3140467337163. Its totient is φ = 781707803520.

The previous prime is 1572977505791. The next prime is 1572977505881. The reversal of 1572977505856 is 6585057792751.

The square root of 1572977505856 is 1254184.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1572977505791 and 1572977505800.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2117062221 + ... + 2117062963.

Almost surely, 2^{1572977505856} is an apocalyptic number.

1572977505856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1572977505856 is the 1254184-th square number.

It is an amenable number.

1572977505856 is a deficient number, since it is larger than the sum of its proper divisors (1567489831307).

1572977505856 is an frugal number, since it uses more digits than its factorization.

1572977505856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 185220000, while the sum is 67.

The spelling of 1572977505856 in words is "one trillion, five hundred seventy-two billion, nine hundred seventy-seven million, five hundred five thousand, eight hundred fifty-six".