40860155009 has 4 divisors (see below), whose sum is σ = 41810391216. Its totient is φ = 39909918804.

The previous prime is 40860154961. The next prime is 40860155033. The reversal of 40860155009 is 90055106804.

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 a de Polignac number, because none of the positive numbers 2^k-40860155009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40860155069) 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, 475118039 + ... + 475118124.

It is an arithmetic number, because the mean of its divisors is an integer number (10452597804).

Almost surely, 2^40860155009 is an apocalyptic number.

It is an amenable number.

40860155009 is a deficient number, since it is larger than the sum of its proper divisors (950236207).

40860155009 is an equidigital number, since it uses as much as digits as its factorization.

40860155009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950236206.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 40860155009 in words is "forty billion, eight hundred sixty million, one hundred fifty-five thousand, nine".