40146867774 has 48 divisors (see below), whose sum is σ = 95263786800. Its totient is φ = 12143507328.

The previous prime is 40146867773. The next prime is 40146867811. The reversal of 40146867774 is 47776864104.

40146867774 is a `hidden beast` number, since 40 + 1 + 468 + 6 + 77 + 74 = 666.

40146867774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40146867774² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40146867774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40146867773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1440159 + ... + 1467770.

It is an arithmetic number, because the mean of its divisors is an integer number (1984662225).

Almost surely, 2^40146867774 is an apocalyptic number.

40146867774 is an abundant number, since it is smaller than the sum of its proper divisors (55116919026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40146867774 is a wasteful number, since it uses less digits than its factorization.

40146867774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908009 (or 2908006 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 40146867774 in words is "forty billion, one hundred forty-six million, eight hundred sixty-seven thousand, seven hundred seventy-four".