40141778421 has 8 divisors (see below), whose sum is σ = 53524225024. Its totient is φ = 26760258720.

The previous prime is 40141778393. The next prime is 40141778423. The reversal of 40141778421 is 12487714104.

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

It is not a de Polignac number, because 40141778421 - 2⁶ = 40141778357 is a prime.

It is a super-2 number, since 2×40141778421² (a number of 22 digits) contains 22 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 40141778421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40141778423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123445 + ... + 309066.

It is an arithmetic number, because the mean of its divisors is an integer number (6690528128).

Almost surely, 2^40141778421 is an apocalyptic number.

It is an amenable number.

40141778421 is a deficient number, since it is larger than the sum of its proper divisors (13382446603).

40141778421 is a wasteful number, since it uses less digits than its factorization.

40141778421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463451.

The product of its (nonzero) digits is 50176, while the sum is 39.

The spelling of 40141778421 in words is "forty billion, one hundred forty-one million, seven hundred seventy-eight thousand, four hundred twenty-one".