40627744489 has 4 divisors (see below), whose sum is σ = 40629023824. Its totient is φ = 40626465156.

The previous prime is 40627744411. The next prime is 40627744523. The reversal of 40627744489 is 98444772604.

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.

It is a cyclic number.

It is not a de Polignac number, because 40627744489 - 2⁷ = 40627744361 is a prime.

It is a super-2 number, since 2×40627744489² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40627744189) 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, 590787 + ... + 655960.

It is an arithmetic number, because the mean of its divisors is an integer number (10157255956).

Almost surely, 2^40627744489 is an apocalyptic number.

It is an amenable number.

40627744489 is a deficient number, since it is larger than the sum of its proper divisors (1279335).

40627744489 is a wasteful number, since it uses less digits than its factorization.

40627744489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279334.

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 40627744489 in words is "forty billion, six hundred twenty-seven million, seven hundred forty-four thousand, four hundred eighty-nine".