40736535551 has 2 divisors, whose sum is σ = 40736535552. Its totient is φ = 40736535550.

The previous prime is 40736535547. The next prime is 40736535577. The reversal of 40736535551 is 15553563704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40736535551 - 2² = 40736535547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40736535251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20368267775 + 20368267776.

It is an arithmetic number, because the mean of its divisors is an integer number (20368267776).

Almost surely, 2^40736535551 is an apocalyptic number.

40736535551 is a deficient number, since it is larger than the sum of its proper divisors (1).

40736535551 is an equidigital number, since it uses as much as digits as its factorization.

40736535551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945000, while the sum is 44.

The spelling of 40736535551 in words is "forty billion, seven hundred thirty-six million, five hundred thirty-five thousand, five hundred fifty-one".