10251621478 has 16 divisors (see below), whose sum is σ = 17576757504. Its totient is φ = 4392914760.

The previous prime is 10251621461. The next prime is 10251621517. The reversal of 10251621478 is 87412615201.

It is a congruent number.

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, 54351 + ... + 153157.

It is an arithmetic number, because the mean of its divisors is an integer number (1098547344).

Almost surely, 2^10251621478 is an apocalyptic number.

10251621478 is a deficient number, since it is larger than the sum of its proper divisors (7325136026).

10251621478 is an equidigital number, since it uses as much as digits as its factorization.

10251621478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106227.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 10251621478 in words is "ten billion, two hundred fifty-one million, six hundred twenty-one thousand, four hundred seventy-eight".