40737043433 has 4 divisors (see below), whose sum is σ = 41505666948. Its totient is φ = 39968419920.

The previous prime is 40737043427. The next prime is 40737043453. The reversal of 40737043433 is 33434073704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23604327769 + 17132715664 = 153637^2 + 130892^2 .

It is a cyclic number.

It is not a de Polignac number, because 40737043433 - 2¹⁴ = 40737027049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40737043453) 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, 384311678 + ... + 384311783.

It is an arithmetic number, because the mean of its divisors is an integer number (10376416737).

Almost surely, 2^40737043433 is an apocalyptic number.

It is an amenable number.

40737043433 is a deficient number, since it is larger than the sum of its proper divisors (768623515).

40737043433 is an equidigital number, since it uses as much as digits as its factorization.

40737043433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768623514.

The product of its (nonzero) digits is 254016, while the sum is 38.

The spelling of 40737043433 in words is "forty billion, seven hundred thirty-seven million, forty-three thousand, four hundred thirty-three".