1889645495924 has 6 divisors (see below), whose sum is σ = 3306879617874. Its totient is φ = 944822747960.

The previous prime is 1889645495909. The next prime is 1889645495963. The reversal of 1889645495924 is 4295945469881.

It can be written as a sum of positive squares in only one way, i.e., 1877672759524 + 11972736400 = 1370282^2 + 109420^2 .

It is a super-2 number, since 2×1889645495924² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236205686987 + ... + 236205686994.

It is an arithmetic number, because the mean of its divisors is an integer number (551146602979).

Almost surely, 2^{1889645495924} is an apocalyptic number.

It is an amenable number.

1889645495924 is a deficient number, since it is larger than the sum of its proper divisors (1417234121950).

1889645495924 is a wasteful number, since it uses less digits than its factorization.

1889645495924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472411373985 (or 472411373983 counting only the distinct ones).

The product of its digits is 895795200, while the sum is 74.

The spelling of 1889645495924 in words is "one trillion, eight hundred eighty-nine billion, six hundred forty-five million, four hundred ninety-five thousand, nine hundred twenty-four".