24951045681 has 15 divisors (see below), whose sum is σ = 37274673513. Its totient is φ = 16633082700.

The previous prime is 24951045619. The next prime is 24951045703. The reversal of 24951045681 is 18654015942.

The square root of 24951045681 is 157959.

It is a perfect power (a square), and thus also a powerful number.

24951045681 is a `hidden beast` number, since 2 + 4 + 9 + 510 + 4 + 56 + 81 = 666.

It is not a de Polignac number, because 24951045681 - 2⁹ = 24951045169 is a prime.

It is a super-2 number, since 2×24951045681² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24951045601) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1412856 + ... + 1430406.

Almost surely, 2^24951045681 is an apocalyptic number.

24951045681 is the 157959-th square number.

24951045681 is the 78980-th centered octagonal number.

It is an amenable number.

24951045681 is a deficient number, since it is larger than the sum of its proper divisors (12323627832).

24951045681 is an frugal number, since it uses more digits than its factorization.

24951045681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35114 (or 17554 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 24951045681 in words is "twenty-four billion, nine hundred fifty-one million, forty-five thousand, six hundred eighty-one".