1893086997992 has 16 divisors (see below), whose sum is σ = 3550169459040. Its totient is φ = 946375142256.

The previous prime is 1893086997943. The next prime is 1893086998013. The reversal of 1893086997992 is 2997996803981.

It is a happy number.

It is a super-2 number, since 2×1893086997992² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20996798 + ... + 21086765.

It is an arithmetic number, because the mean of its divisors is an integer number (221885591190).

Almost surely, 2^{1893086997992} is an apocalyptic number.

It is an amenable number.

1893086997992 is a deficient number, since it is larger than the sum of its proper divisors (1657082461048).

1893086997992 is a wasteful number, since it uses less digits than its factorization.

1893086997992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42089192 (or 42089188 counting only the distinct ones).

The product of its (nonzero) digits is 952342272, while the sum is 80.

The spelling of 1893086997992 in words is "one trillion, eight hundred ninety-three billion, eighty-six million, nine hundred ninety-seven thousand, nine hundred ninety-two".