10156387499 has 4 divisors (see below), whose sum is σ = 10328529720. Its totient is φ = 9984245280.

The previous prime is 10156387459. The next prime is 10156387513. The reversal of 10156387499 is 99478365101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10156387499 - 2¹⁶ = 10156321963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10156387499.

It is not an unprimeable number, because it can be changed into a prime (10156387459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86071022 + ... + 86071139.

It is an arithmetic number, because the mean of its divisors is an integer number (2582132430).

Almost surely, 2^10156387499 is an apocalyptic number.

10156387499 is a deficient number, since it is larger than the sum of its proper divisors (172142221).

10156387499 is an equidigital number, since it uses as much as digits as its factorization.

10156387499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172142220.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 10156387499 in words is "ten billion, one hundred fifty-six million, three hundred eighty-seven thousand, four hundred ninety-nine".