40505614278 has 8 divisors (see below), whose sum is σ = 81011228568. Its totient is φ = 13501871424.

The previous prime is 40505614277. The next prime is 40505614291. The reversal of 40505614278 is 87241650504.

It is a happy number.

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

40505614278 is an admirable number.

It is a super-2 number, since 2×40505614278² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40505614277) 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, 3375467851 + ... + 3375467862.

It is an arithmetic number, because the mean of its divisors is an integer number (10126403571).

Almost surely, 2^40505614278 is an apocalyptic number.

40505614278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40505614278 is a wasteful number, since it uses less digits than its factorization.

40505614278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750935718.

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 40505614278 in words is "forty billion, five hundred five million, six hundred fourteen thousand, two hundred seventy-eight".