2508631123946 has 4 divisors (see below), whose sum is σ = 3762946685922. Its totient is φ = 1254315561972.

The previous prime is 2508631123891. The next prime is 2508631123949. The reversal of 2508631123946 is 6493211368052.

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., 1451569545721 + 1057061578225 = 1204811^2 + 1028135^2 .

It is a super-2 number, since 2×2508631123946² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2508631123894 and 2508631123903.

It is not an unprimeable number, because it can be changed into a prime (2508631123949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627157780985 + ... + 627157780988.

Almost surely, 2^{2508631123946} is an apocalyptic number.

2508631123946 is a deficient number, since it is larger than the sum of its proper divisors (1254315561976).

2508631123946 is a wasteful number, since it uses less digits than its factorization.

2508631123946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254315561975.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 2508631123946 in words is "two trillion, five hundred eight billion, six hundred thirty-one million, one hundred twenty-three thousand, nine hundred forty-six".