189464589015 has 32 divisors (see below), whose sum is σ = 326483867136. Its totient is φ = 93268644480.

The previous prime is 189464589011. The next prime is 189464589037. The reversal of 189464589015 is 510985464981.

It is not a de Polignac number, because 189464589015 - 2² = 189464589011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189464589015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189464589011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4548312 + ... + 4589778.

It is an arithmetic number, because the mean of its divisors is an integer number (10202620848).

Almost surely, 2^189464589015 is an apocalyptic number.

189464589015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189464589015 is a deficient number, since it is larger than the sum of its proper divisors (137019278121).

189464589015 is a wasteful number, since it uses less digits than its factorization.

189464589015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64919.

The product of its (nonzero) digits is 12441600, while the sum is 60.

The spelling of 189464589015 in words is "one hundred eighty-nine billion, four hundred sixty-four million, five hundred eighty-nine thousand, fifteen".