10345021979 has 8 divisors (see below), whose sum is σ = 10892137680. Its totient is φ = 9798170400.

The previous prime is 10345021957. The next prime is 10345022003. The reversal of 10345021979 is 97912054301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10345021979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10345021079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17069 + ... + 144849.

It is an arithmetic number, because the mean of its divisors is an integer number (1361517210).

Almost surely, 2^10345021979 is an apocalyptic number.

10345021979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

10345021979 is a deficient number, since it is larger than the sum of its proper divisors (547115701).

10345021979 is a wasteful number, since it uses less digits than its factorization.

10345021979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132061.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 10345021979 in words is "ten billion, three hundred forty-five million, twenty-one thousand, nine hundred seventy-nine".