7782472650 has 24 divisors (see below), whose sum is σ = 19300532544. Its totient is φ = 2075326000.

The previous prime is 7782472639. The next prime is 7782472651. The reversal of 7782472650 is 562742877.

It is a self number, because there is not a number n which added to its sum of digits gives 7782472650.

It is not an unprimeable number, because it can be changed into a prime (7782472651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25941426 + ... + 25941725.

It is an arithmetic number, because the mean of its divisors is an integer number (804188856).

Almost surely, 2^7782472650 is an apocalyptic number.

7782472650 is an abundant number, since it is smaller than the sum of its proper divisors (11518059894).

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

7782472650 is a wasteful number, since it uses less digits than its factorization.

7782472650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51883166 (or 51883161 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 48.

The square root of 7782472650 is about 88218.3237768662. The cubic root of 7782472650 is about 1981.7058938881.

The spelling of 7782472650 in words is "seven billion, seven hundred eighty-two million, four hundred seventy-two thousand, six hundred fifty".