189452019464 has 64 divisors (see below), whose sum is σ = 362143094400. Its totient is φ = 92900307456.

The previous prime is 189452019451. The next prime is 189452019481. The reversal of 189452019464 is 464910254981.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71140997 + ... + 71143659.

It is an arithmetic number, because the mean of its divisors is an integer number (5658485850).

Almost surely, 2^189452019464 is an apocalyptic number.

It is an amenable number.

189452019464 is a deficient number, since it is larger than the sum of its proper divisors (172691074936).

189452019464 is a wasteful number, since it uses less digits than its factorization.

189452019464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534 (or 3530 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 189452019464 in words is "one hundred eighty-nine billion, four hundred fifty-two million, nineteen thousand, four hundred sixty-four".