40430403239951 has 2 divisors, whose sum is σ = 40430403239952. Its totient is φ = 40430403239950.

The previous prime is 40430403239893. The next prime is 40430403240041. The reversal of 40430403239951 is 15993230403404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40430403239951 is a prime.

It is a super-2 number, since 2×40430403239951² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40430403239896 and 40430403239905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40430403239851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215201619975 + 20215201619976.

It is an arithmetic number, because the mean of its divisors is an integer number (20215201619976).

Almost surely, 2^{40430403239951} is an apocalyptic number.

40430403239951 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430403239951 is an equidigital number, since it uses as much as digits as its factorization.

40430403239951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 40430403239951 in words is "forty trillion, four hundred thirty billion, four hundred three million, two hundred thirty-nine thousand, nine hundred fifty-one".