1017642415879 has 8 divisors (see below), whose sum is σ = 1021689544608. Its totient is φ = 1013603310720.

The previous prime is 1017642415871. The next prime is 1017642415949. The reversal of 1017642415879 is 9785142467101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1017642415879 - 2³ = 1017642415871 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 (1017642415871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751662 + ... + 2259115.

It is an arithmetic number, because the mean of its divisors is an integer number (127711193076).

Almost surely, 2^{1017642415879} is an apocalyptic number.

1017642415879 is a deficient number, since it is larger than the sum of its proper divisors (4047128729).

1017642415879 is an equidigital number, since it uses as much as digits as its factorization.

1017642415879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011785.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 1017642415879 in words is "one trillion, seventeen billion, six hundred forty-two million, four hundred fifteen thousand, eight hundred seventy-nine".