43761399452 has 24 divisors (see below), whose sum is σ = 78485506176. Its totient is φ = 21338554608.

The previous prime is 43761399449. The next prime is 43761399463. The reversal of 43761399452 is 25499316734.

It is a junction number, because it is equal to n+sod(n) for n = 43761399394 and 43761399403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87248 + ... + 308439.

It is an arithmetic number, because the mean of its divisors is an integer number (3270229424).

Almost surely, 2^43761399452 is an apocalyptic number.

It is an amenable number.

43761399452 is a deficient number, since it is larger than the sum of its proper divisors (34724106724).

43761399452 is a wasteful number, since it uses less digits than its factorization.

43761399452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396377 (or 396375 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 53.

The spelling of 43761399452 in words is "forty-three billion, seven hundred sixty-one million, three hundred ninety-nine thousand, four hundred fifty-two".