46378637449 has 9 divisors (see below), whose sum is σ = 47929882701. Its totient is φ = 44876091660.

The previous prime is 46378637447. The next prime is 46378637479. The reversal of 46378637449 is 94473687364.

The square root of 46378637449 is 215357.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 46378637449 - 2¹ = 46378637447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46378637441) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6672594 + ... + 6679540.

Almost surely, 2^46378637449 is an apocalyptic number.

46378637449 is the 215357-th square number.

46378637449 is the 107679-th centered octagonal number.

It is an amenable number.

46378637449 is a deficient number, since it is larger than the sum of its proper divisors (1551245252).

46378637449 is an frugal number, since it uses more digits than its factorization.

46378637449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13956 (or 6978 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 61.

The spelling of 46378637449 in words is "forty-six billion, three hundred seventy-eight million, six hundred thirty-seven thousand, four hundred forty-nine".