40981011508 has 6 divisors (see below), whose sum is σ = 71716770146. Its totient is φ = 20490505752.

The previous prime is 40981011457. The next prime is 40981011509. The reversal of 40981011508 is 80511018904.

It can be written as a sum of positive squares in only one way, i.e., 39564392464 + 1416619044 = 198908^2 + 37638^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40981011509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5122626435 + ... + 5122626442.

Almost surely, 2^40981011508 is an apocalyptic number.

It is an amenable number.

40981011508 is a deficient number, since it is larger than the sum of its proper divisors (30735758638).

40981011508 is a wasteful number, since it uses less digits than its factorization.

40981011508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245252881 (or 10245252879 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 37.

The spelling of 40981011508 in words is "forty billion, nine hundred eighty-one million, eleven thousand, five hundred eight".