24970997764 has 6 divisors (see below), whose sum is σ = 43699246094. Its totient is φ = 12485498880.

The previous prime is 24970997749. The next prime is 24970997773. The reversal of 24970997764 is 46779907942.

It can be written as a sum of positive squares in only one way, i.e., 12952260864 + 12018736900 = 113808^2 + 109630^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24970997696 and 24970997705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121374717 + ... + 3121374724.

Almost surely, 2^24970997764 is an apocalyptic number.

It is an amenable number.

24970997764 is a deficient number, since it is larger than the sum of its proper divisors (18728248330).

24970997764 is a wasteful number, since it uses less digits than its factorization.

24970997764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242749445 (or 6242749443 counting only the distinct ones).

The product of its (nonzero) digits is 48009024, while the sum is 64.

The spelling of 24970997764 in words is "twenty-four billion, nine hundred seventy million, nine hundred ninety-seven thousand, seven hundred sixty-four".