45431043487 has 2 divisors, whose sum is σ = 45431043488. Its totient is φ = 45431043486.

The previous prime is 45431043439. The next prime is 45431043521. The reversal of 45431043487 is 78434013454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45431043487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45431043787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22715521743 + 22715521744.

It is an arithmetic number, because the mean of its divisors is an integer number (22715521744).

Almost surely, 2^45431043487 is an apocalyptic number.

45431043487 is a deficient number, since it is larger than the sum of its proper divisors (1).

45431043487 is an equidigital number, since it uses as much as digits as its factorization.

45431043487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 45431043487 in words is "forty-five billion, four hundred thirty-one million, forty-three thousand, four hundred eighty-seven".