40690907359 has 4 divisors (see below), whose sum is σ = 41085964816. Its totient is φ = 40295849904.

The previous prime is 40690907333. The next prime is 40690907417. The reversal of 40690907359 is 95370909604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40690907359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40690901359) 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, 197528574 + ... + 197528779.

It is an arithmetic number, because the mean of its divisors is an integer number (10271491204).

Almost surely, 2^40690907359 is an apocalyptic number.

40690907359 is a deficient number, since it is larger than the sum of its proper divisors (395057457).

40690907359 is a wasteful number, since it uses less digits than its factorization.

40690907359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395057456.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The spelling of 40690907359 in words is "forty billion, six hundred ninety million, nine hundred seven thousand, three hundred fifty-nine".