40578676937 has 4 divisors (see below), whose sum is σ = 40581520836. Its totient is φ = 40575833040.

The previous prime is 40578676913. The next prime is 40578676939. The reversal of 40578676937 is 73967687504.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2716911376 + 37861765561 = 52124^2 + 194581^2 .

It is a cyclic number.

It is not a de Polignac number, because 40578676937 - 2²⁰ = 40577628361 is a prime.

It is a super-3 number, since 3×40578676937³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40578676937.

It is not an unprimeable number, because it can be changed into a prime (40578676939) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1400438 + ... + 1429119.

It is an arithmetic number, because the mean of its divisors is an integer number (10145380209).

Almost surely, 2^40578676937 is an apocalyptic number.

It is an amenable number.

40578676937 is a deficient number, since it is larger than the sum of its proper divisors (2843899).

40578676937 is a wasteful number, since it uses less digits than its factorization.

40578676937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843898.

The product of its (nonzero) digits is 53343360, while the sum is 62.

The spelling of 40578676937 in words is "forty billion, five hundred seventy-eight million, six hundred seventy-six thousand, nine hundred thirty-seven".