40288919851 has 2 divisors, whose sum is σ = 40288919852. Its totient is φ = 40288919850.

The previous prime is 40288919831. The next prime is 40288919857. The reversal of 40288919851 is 15891988204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40288919851 - 2¹¹ = 40288917803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40288919792 and 40288919801.

It is not a weakly prime, because it can be changed into another prime (40288919857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20144459925 + 20144459926.

It is an arithmetic number, because the mean of its divisors is an integer number (20144459926).

Almost surely, 2^40288919851 is an apocalyptic number.

40288919851 is a deficient number, since it is larger than the sum of its proper divisors (1).

40288919851 is an equidigital number, since it uses as much as digits as its factorization.

40288919851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 55.

It can be divided in two parts, 402889 and 19851, that added together give a triangular number (422740 = T₉₁₉).

The spelling of 40288919851 in words is "forty billion, two hundred eighty-eight million, nine hundred nineteen thousand, eight hundred fifty-one".