1825719820864 has 21 divisors (see below), whose sum is σ = 3622934219827. Its totient is φ = 912854505664.

The previous prime is 1825719820849. The next prime is 1825719820871. The reversal of 1825719820864 is 4680289175281.

It is a happy number.

The square root of 1825719820864 is 1351192.

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

It is a super-4 number, since 4×1825719820864⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10725087 + ... + 10893985.

Almost surely, 2^{1825719820864} is an apocalyptic number.

1825719820864 is the 1351192-nd square number.

It is an amenable number.

1825719820864 is a deficient number, since it is larger than the sum of its proper divisors (1797214398963).

1825719820864 is an frugal number, since it uses more digits than its factorization.

1825719820864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337810 (or 168901 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 61.

The spelling of 1825719820864 in words is "one trillion, eight hundred twenty-five billion, seven hundred nineteen million, eight hundred twenty thousand, eight hundred sixty-four".