189378676245 has 32 divisors (see below), whose sum is σ = 330769350144. Its totient is φ = 91759553600.

The previous prime is 189378676219. The next prime is 189378676283. The reversal of 189378676245 is 542676873981.

It is not a de Polignac number, because 189378676245 - 2¹² = 189378672149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125511 + ... + 628100.

It is an arithmetic number, because the mean of its divisors is an integer number (10336542192).

Almost surely, 2^189378676245 is an apocalyptic number.

189378676245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189378676245 is a deficient number, since it is larger than the sum of its proper divisors (141390673899).

189378676245 is a wasteful number, since it uses less digits than its factorization.

189378676245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755153.

The product of its digits is 121927680, while the sum is 66.

The spelling of 189378676245 in words is "one hundred eighty-nine billion, three hundred seventy-eight million, six hundred seventy-six thousand, two hundred forty-five".