40000163977 has 4 divisors (see below), whose sum is σ = 40245563920. Its totient is φ = 39754764036.

The previous prime is 40000163947. The next prime is 40000163989. The reversal of 40000163977 is 77936100004.

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 not a de Polignac number, because 40000163977 - 2³¹ = 37852680329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40000163947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122699727 + ... + 122700052.

It is an arithmetic number, because the mean of its divisors is an integer number (10061390980).

Almost surely, 2^40000163977 is an apocalyptic number.

It is an amenable number.

40000163977 is a deficient number, since it is larger than the sum of its proper divisors (245399943).

40000163977 is a wasteful number, since it uses less digits than its factorization.

40000163977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245399942.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 40000163977 in words is "forty billion, one hundred sixty-three thousand, nine hundred seventy-seven".