40352510381 has 2 divisors, whose sum is σ = 40352510382. Its totient is φ = 40352510380.

The previous prime is 40352510371. The next prime is 40352510389. The reversal of 40352510381 is 18301525304.

40352510381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39604980100 + 747530281 = 199010^2 + 27341^2 .

It is a cyclic number.

It is not a de Polignac number, because 40352510381 - 2¹⁴ = 40352493997 is a prime.

It is a super-2 number, since 2×40352510381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40352510389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20176255190 + 20176255191.

It is an arithmetic number, because the mean of its divisors is an integer number (20176255191).

Almost surely, 2^40352510381 is an apocalyptic number.

It is an amenable number.

40352510381 is a deficient number, since it is larger than the sum of its proper divisors (1).

40352510381 is an equidigital number, since it uses as much as digits as its factorization.

40352510381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 40352510381 in words is "forty billion, three hundred fifty-two million, five hundred ten thousand, three hundred eighty-one".