123692985274 has 4 divisors (see below), whose sum is σ = 185539477914. Its totient is φ = 61846492636.

The previous prime is 123692985271. The next prime is 123692985307. The reversal of 123692985274 is 472589296321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 118813264249 + 4879721025 = 344693^2 + 69855^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (123692985271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30923246317 + ... + 30923246320.

Almost surely, 2^123692985274 is an apocalyptic number.

123692985274 is a deficient number, since it is larger than the sum of its proper divisors (61846492640).

123692985274 is an equidigital number, since it uses as much as digits as its factorization.

123692985274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61846492639.

The product of its digits is 13063680, while the sum is 58.

The spelling of 123692985274 in words is "one hundred twenty-three billion, six hundred ninety-two million, nine hundred eighty-five thousand, two hundred seventy-four".