40687133323 has 2 divisors, whose sum is σ = 40687133324. Its totient is φ = 40687133322.

The previous prime is 40687133303. The next prime is 40687133401. The reversal of 40687133323 is 32333178604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40687133323 is a prime.

It is not a weakly prime, because it can be changed into another prime (40687133303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20343566661 + 20343566662.

It is an arithmetic number, because the mean of its divisors is an integer number (20343566662).

Almost surely, 2^40687133323 is an apocalyptic number.

40687133323 is a deficient number, since it is larger than the sum of its proper divisors (1).

40687133323 is an equidigital number, since it uses as much as digits as its factorization.

40687133323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 40687133323 in words is "forty billion, six hundred eighty-seven million, one hundred thirty-three thousand, three hundred twenty-three".