146390879699 has 4 divisors (see below), whose sum is σ = 147003394080. Its totient is φ = 145778365320.

The previous prime is 146390879681. The next prime is 146390879729. The reversal of 146390879699 is 996978093641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996978093641 = 57751 ⋅17263391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146390879699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146390879669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306256832 + ... + 306257309.

It is an arithmetic number, because the mean of its divisors is an integer number (36750848520).

Almost surely, 2^146390879699 is an apocalyptic number.

146390879699 is a deficient number, since it is larger than the sum of its proper divisors (612514381).

146390879699 is an equidigital number, since it uses as much as digits as its factorization.

146390879699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612514380.

The product of its (nonzero) digits is 158723712, while the sum is 71.

The spelling of 146390879699 in words is "one hundred forty-six billion, three hundred ninety million, eight hundred seventy-nine thousand, six hundred ninety-nine".