40157420727 has 4 divisors (see below), whose sum is σ = 53543227640. Its totient is φ = 26771613816.

The previous prime is 40157420651. The next prime is 40157420747. The reversal of 40157420727 is 72702475104.

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

It is not a de Polignac number, because 40157420727 - 2¹² = 40157416631 is a prime.

It is a super-2 number, since 2×40157420727² (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 (40157420747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6692903452 + ... + 6692903457.

It is an arithmetic number, because the mean of its divisors is an integer number (13385806910).

Almost surely, 2^40157420727 is an apocalyptic number.

40157420727 is a deficient number, since it is larger than the sum of its proper divisors (13385806913).

40157420727 is a wasteful number, since it uses less digits than its factorization.

40157420727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13385806912.

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 40157420727 in words is "forty billion, one hundred fifty-seven million, four hundred twenty thousand, seven hundred twenty-seven".