40137829378 has 8 divisors (see below), whose sum is σ = 62282838780. Its totient is φ = 19376883120.

The previous prime is 40137829373. The next prime is 40137829397. The reversal of 40137829378 is 87392873104.

It can be written as a sum of positive squares in 2 ways, for example, as 39488446089 + 649383289 = 198717^2 + 25483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40137829378² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40137829373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346015713 + ... + 346015828.

Almost surely, 2^40137829378 is an apocalyptic number.

40137829378 is a deficient number, since it is larger than the sum of its proper divisors (22145009402).

40137829378 is a wasteful number, since it uses less digits than its factorization.

40137829378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692031572.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 40137829378 in words is "forty billion, one hundred thirty-seven million, eight hundred twenty-nine thousand, three hundred seventy-eight".