40486254278 has 4 divisors (see below), whose sum is σ = 60729381420. Its totient is φ = 20243127138.

The previous prime is 40486254269. The next prime is 40486254287. The reversal of 40486254278 is 87245268404.

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

It is an interprime number because it is at equal distance from previous prime (40486254269) and next prime (40486254287).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10121563568 + ... + 10121563571.

It is an arithmetic number, because the mean of its divisors is an integer number (15182345355).

Almost surely, 2^40486254278 is an apocalyptic number.

40486254278 is a deficient number, since it is larger than the sum of its proper divisors (20243127142).

40486254278 is a wasteful number, since it uses less digits than its factorization.

40486254278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243127141.

The product of its (nonzero) digits is 3440640, while the sum is 50.

The spelling of 40486254278 in words is "forty billion, four hundred eighty-six million, two hundred fifty-four thousand, two hundred seventy-eight".