1889679940407 has 48 divisors (see below), whose sum is σ = 3398182260480. Its totient is φ = 1032868522224.

The previous prime is 1889679940349. The next prime is 1889679940439. The reversal of 1889679940407 is 7040499769881.

1889679940407 is a `hidden beast` number, since 1 + 8 + 8 + 96 + 7 + 99 + 40 + 407 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1889679940407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889679940457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31020213 + ... + 31081070.

It is an arithmetic number, because the mean of its divisors is an integer number (70795463760).

Almost surely, 2^{1889679940407} is an apocalyptic number.

1889679940407 is a deficient number, since it is larger than the sum of its proper divisors (1508502320073).

1889679940407 is a wasteful number, since it uses less digits than its factorization.

1889679940407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62101329 (or 62101316 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 72.

The spelling of 1889679940407 in words is "one trillion, eight hundred eighty-nine billion, six hundred seventy-nine million, nine hundred forty thousand, four hundred seven".