40129110401 has 4 divisors (see below), whose sum is σ = 40129521600. Its totient is φ = 40128699204.

The previous prime is 40129110391. The next prime is 40129110407. The reversal of 40129110401 is 10401192104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40129110401 is a prime.

It is a super-2 number, since 2×40129110401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40129110407) 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, 33380 + ... + 285258.

It is an arithmetic number, because the mean of its divisors is an integer number (10032380400).

Almost surely, 2^40129110401 is an apocalyptic number.

It is an amenable number.

40129110401 is a deficient number, since it is larger than the sum of its proper divisors (411199).

40129110401 is a wasteful number, since it uses less digits than its factorization.

40129110401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411198.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 40129110401 in words is "forty billion, one hundred twenty-nine million, one hundred ten thousand, four hundred one".