45408639487 has 2 divisors, whose sum is σ = 45408639488. Its totient is φ = 45408639486.

The previous prime is 45408639449. The next prime is 45408639491. The reversal of 45408639487 is 78493680454.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45408639487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45408639407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22704319743 + 22704319744.

It is an arithmetic number, because the mean of its divisors is an integer number (22704319744).

Almost surely, 2^45408639487 is an apocalyptic number.

45408639487 is a deficient number, since it is larger than the sum of its proper divisors (1).

45408639487 is an equidigital number, since it uses as much as digits as its factorization.

45408639487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 45408639487 in words is "forty-five billion, four hundred eight million, six hundred thirty-nine thousand, four hundred eighty-seven".