10187979944515 has 16 divisors (see below), whose sum is σ = 12229239939840. Its totient is φ = 8147941670880.

The previous prime is 10187979944491. The next prime is 10187979944533. The reversal of 10187979944515 is 51544997978101.

It is a happy number.

It is not a de Polignac number, because 10187979944515 - 2²³ = 10187971555907 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 335214970 + ... + 335245360.

It is an arithmetic number, because the mean of its divisors is an integer number (764327496240).

Almost surely, 2^{10187979944515} is an apocalyptic number.

10187979944515 is a deficient number, since it is larger than the sum of its proper divisors (2041259995325).

10187979944515 is a wasteful number, since it uses less digits than its factorization.

10187979944515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48282.

The product of its (nonzero) digits is 114307200, while the sum is 70.

The spelling of 10187979944515 in words is "ten trillion, one hundred eighty-seven billion, nine hundred seventy-nine million, nine hundred forty-four thousand, five hundred fifteen".