40137389207 has 4 divisors (see below), whose sum is σ = 40795379256. Its totient is φ = 39479399160.

The previous prime is 40137389203. The next prime is 40137389267. The reversal of 40137389207 is 70298373104.

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

It is a cyclic number.

It is not a de Polignac number, because 40137389207 - 2² = 40137389203 is a prime.

It is a super-2 number, since 2×40137389207² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40137389203) 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, 328994933 + ... + 328995054.

It is an arithmetic number, because the mean of its divisors is an integer number (10198844814).

Almost surely, 2^40137389207 is an apocalyptic number.

40137389207 is a deficient number, since it is larger than the sum of its proper divisors (657990049).

40137389207 is an equidigital number, since it uses as much as digits as its factorization.

40137389207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657990048.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 40137389207 in words is "forty billion, one hundred thirty-seven million, three hundred eighty-nine thousand, two hundred seven".