10207687621 has 16 divisors (see below), whose sum is σ = 11151979776. Its totient is φ = 9305819136.

The previous prime is 10207687619. The next prime is 10207687643. The reversal of 10207687621 is 12678670201.

10207687621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10207687621 - 2¹ = 10207687619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10207687691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11650 + ... + 143356.

It is an arithmetic number, because the mean of its divisors is an integer number (696998736).

Almost surely, 2^10207687621 is an apocalyptic number.

It is an amenable number.

10207687621 is a deficient number, since it is larger than the sum of its proper divisors (944292155).

10207687621 is a wasteful number, since it uses less digits than its factorization.

10207687621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131868.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 10207687621 in words is "ten billion, two hundred seven million, six hundred eighty-seven thousand, six hundred twenty-one".