1889729378607 has 8 divisors (see below), whose sum is σ = 2879587624576. Its totient is φ = 1079845359192.

The previous prime is 1889729378557. The next prime is 1889729378617. The reversal of 1889729378607 is 7068739279881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1889729378607 - 2¹⁸ = 1889729116463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889729378617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44993556613 + ... + 44993556654.

It is an arithmetic number, because the mean of its divisors is an integer number (359948453072).

Almost surely, 2^{1889729378607} is an apocalyptic number.

1889729378607 is a deficient number, since it is larger than the sum of its proper divisors (989858245969).

1889729378607 is an equidigital number, since it uses as much as digits as its factorization.

1889729378607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89987113277.

The product of its (nonzero) digits is 512096256, while the sum is 75.

The spelling of 1889729378607 in words is "one trillion, eight hundred eighty-nine billion, seven hundred twenty-nine million, three hundred seventy-eight thousand, six hundred seven".