25148942746 has 4 divisors (see below), whose sum is σ = 37723414122. Its totient is φ = 12574471372.

The previous prime is 25148942743. The next prime is 25148942759. The reversal of 25148942746 is 64724984152.

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., 16304480721 + 8844462025 = 127689^2 + 94045^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25148942693 and 25148942702.

It is not an unprimeable number, because it can be changed into a prime (25148942743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6287235685 + ... + 6287235688.

Almost surely, 2^25148942746 is an apocalyptic number.

25148942746 is a deficient number, since it is larger than the sum of its proper divisors (12574471376).

25148942746 is a wasteful number, since it uses less digits than its factorization.

25148942746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12574471375.

The product of its digits is 3870720, while the sum is 52.

The spelling of 25148942746 in words is "twenty-five billion, one hundred forty-eight million, nine hundred forty-two thousand, seven hundred forty-six".