2298621729640 has 32 divisors (see below), whose sum is σ = 5476128239880. Its totient is φ = 865363474432.

The previous prime is 2298621729629. The next prime is 2298621729713. The reversal of 2298621729640 is 469271268922.

It can be written as a sum of positive squares in 4 ways, for example, as 2238871793796 + 59749935844 = 1496286^2 + 244438^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1690162357 + ... + 1690163716.

Almost surely, 2^{2298621729640} is an apocalyptic number.

2298621729640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2298621729640 is an abundant number, since it is smaller than the sum of its proper divisors (3177506510240).

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

2298621729640 is a wasteful number, since it uses less digits than its factorization.

2298621729640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380326101 (or 3380326097 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 2298621729640 in words is "two trillion, two hundred ninety-eight billion, six hundred twenty-one million, seven hundred twenty-nine thousand, six hundred forty".