7785248560 has 20 divisors (see below), whose sum is σ = 18100703088. Its totient is φ = 3114099392.

The previous prime is 7785248557. The next prime is 7785248579. The reversal of 7785248560 is 658425877.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×7785248560² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7785248498 and 7785248507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48657724 + ... + 48657883.

Almost surely, 2^7785248560 is an apocalyptic number.

It is an amenable number.

7785248560 is an abundant number, since it is smaller than the sum of its proper divisors (10315454528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7785248560 is a wasteful number, since it uses less digits than its factorization.

7785248560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97315620 (or 97315614 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 52.

The square root of 7785248560 is about 88234.0555567973. The cubic root of 7785248560 is about 1981.9414823929.

The spelling of 7785248560 in words is "seven billion, seven hundred eighty-five million, two hundred forty-eight thousand, five hundred sixty".