40077157667 has 4 divisors (see below), whose sum is σ = 40088924256. Its totient is φ = 40065391080.

The previous prime is 40077157663. The next prime is 40077157669. The reversal of 40077157667 is 76675177004.

It is a happy number.

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 40077157667 - 2² = 40077157663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40077157663) 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, 5878184 + ... + 5884997.

It is an arithmetic number, because the mean of its divisors is an integer number (10022231064).

Almost surely, 2^40077157667 is an apocalyptic number.

40077157667 is a deficient number, since it is larger than the sum of its proper divisors (11766589).

40077157667 is a wasteful number, since it uses less digits than its factorization.

40077157667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766588.

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 40077157667 in words is "forty billion, seventy-seven million, one hundred fifty-seven thousand, six hundred sixty-seven".