40178745486 has 48 divisors (see below), whose sum is σ = 95194794240. Its totient is φ = 12146294160.

The previous prime is 40178745413. The next prime is 40178745547. The reversal of 40178745486 is 68454787104.

40178745486 is a `hidden beast` number, since 4 + 0 + 17 + 87 + 4 + 548 + 6 = 666.

It is a super-2 number, since 2×40178745486² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159190 + ... + 325113.

It is an arithmetic number, because the mean of its divisors is an integer number (1983224880).

Almost surely, 2^40178745486 is an apocalyptic number.

40178745486 is an abundant number, since it is smaller than the sum of its proper divisors (55016048754).

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

40178745486 is a wasteful number, since it uses less digits than its factorization.

40178745486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484741 (or 484738 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 40178745486 in words is "forty billion, one hundred seventy-eight million, seven hundred forty-five thousand, four hundred eighty-six".