10245640621250 has 20 divisors (see below), whose sum is σ = 19204428782814. Its totient is φ = 4098256248000.

The previous prime is 10245640621133. The next prime is 10245640621273. The reversal of 10245640621250 is 5212604654201.

It can be written as a sum of positive squares in 5 ways, for example, as 278871654889 + 9966768966361 = 528083^2 + 3157019^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4098254999 + ... + 4098257498.

Almost surely, 2^{10245640621250} is an apocalyptic number.

10245640621250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10245640621250 is a deficient number, since it is larger than the sum of its proper divisors (8958788161564).

10245640621250 is an frugal number, since it uses more digits than its factorization.

10245640621250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196512519 (or 8196512504 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 10245640621250 in words is "ten trillion, two hundred forty-five billion, six hundred forty million, six hundred twenty-one thousand, two hundred fifty".