369985878029 has 4 divisors (see below), whose sum is σ = 386072220576. Its totient is φ = 353899535484.

The previous prime is 369985877999. The next prime is 369985878037. The reversal of 369985878029 is 920878589963.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 920878589963 = 1409 ⋅653568907.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-369985878029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369985878049) 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, 8043171239 + ... + 8043171284.

It is an arithmetic number, because the mean of its divisors is an integer number (96518055144).

Almost surely, 2^369985878029 is an apocalyptic number.

It is an amenable number.

369985878029 is a deficient number, since it is larger than the sum of its proper divisors (16086342547).

369985878029 is a wasteful number, since it uses less digits than its factorization.

369985878029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16086342546.

The product of its (nonzero) digits is 470292480, while the sum is 74.

The spelling of 369985878029 in words is "three hundred sixty-nine billion, nine hundred eighty-five million, eight hundred seventy-eight thousand, twenty-nine".