23774157139 has 2 divisors, whose sum is σ = 23774157140. Its totient is φ = 23774157138.

The previous prime is 23774157103. The next prime is 23774157191. The reversal of 23774157139 is 93175147732.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23774157139 - 2¹³ = 23774148947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23774157092 and 23774157101.

It is not a weakly prime, because it can be changed into another prime (23774157839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11887078569 + 11887078570.

It is an arithmetic number, because the mean of its divisors is an integer number (11887078570).

Almost surely, 2^23774157139 is an apocalyptic number.

23774157139 is a deficient number, since it is larger than the sum of its proper divisors (1).

23774157139 is an equidigital number, since it uses as much as digits as its factorization.

23774157139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 49.

The spelling of 23774157139 in words is "twenty-three billion, seven hundred seventy-four million, one hundred fifty-seven thousand, one hundred thirty-nine".