46144390869 has 12 divisors (see below), whose sum is σ = 70161062400. Its totient is φ = 29143825704.

The previous prime is 46144390819. The next prime is 46144390879. The reversal of 46144390869 is 96809344164.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-46144390869 is a prime.

It is a super-2 number, since 2×46144390869² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46144390819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134924949 + ... + 134925290.

It is an arithmetic number, because the mean of its divisors is an integer number (5846755200).

Almost surely, 2^46144390869 is an apocalyptic number.

It is an amenable number.

46144390869 is a deficient number, since it is larger than the sum of its proper divisors (24016671531).

46144390869 is a wasteful number, since it uses less digits than its factorization.

46144390869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269850264 (or 269850261 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 46144390869 in words is "forty-six billion, one hundred forty-four million, three hundred ninety thousand, eight hundred sixty-nine".