25742371457 has 8 divisors (see below), whose sum is σ = 28680089472. Its totient is φ = 22904237200.

The previous prime is 25742371451. The next prime is 25742371493. The reversal of 25742371457 is 75417324752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25742371457 - 2¹² = 25742367361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25742371451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24895394 + ... + 24896427.

It is an arithmetic number, because the mean of its divisors is an integer number (3585011184).

Almost surely, 2^25742371457 is an apocalyptic number.

It is an amenable number.

25742371457 is a deficient number, since it is larger than the sum of its proper divisors (2937718015).

25742371457 is a wasteful number, since it uses less digits than its factorization.

25742371457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49791879.

The product of its digits is 1646400, while the sum is 47.

The spelling of 25742371457 in words is "twenty-five billion, seven hundred forty-two million, three hundred seventy-one thousand, four hundred fifty-seven".