481256377639 has 2 divisors, whose sum is σ = 481256377640. Its totient is φ = 481256377638.

The previous prime is 481256377633. The next prime is 481256377691. The reversal of 481256377639 is 936773652184.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 481256377639 - 2³ = 481256377631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481256377631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240628188819 + 240628188820.

It is an arithmetic number, because the mean of its divisors is an integer number (240628188820).

Almost surely, 2^481256377639 is an apocalyptic number.

481256377639 is a deficient number, since it is larger than the sum of its proper divisors (1).

481256377639 is an equidigital number, since it uses as much as digits as its factorization.

481256377639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 61.

The spelling of 481256377639 in words is "four hundred eighty-one billion, two hundred fifty-six million, three hundred seventy-seven thousand, six hundred thirty-nine".