40481204987 has 2 divisors, whose sum is σ = 40481204988. Its totient is φ = 40481204986.

The previous prime is 40481204923. The next prime is 40481204989. The reversal of 40481204987 is 78940218404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40481204987 - 2⁶ = 40481204923 is a prime.

Together with 40481204989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40481204989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20240602493 + 20240602494.

It is an arithmetic number, because the mean of its divisors is an integer number (20240602494).

Almost surely, 2^40481204987 is an apocalyptic number.

40481204987 is a deficient number, since it is larger than the sum of its proper divisors (1).

40481204987 is an equidigital number, since it uses as much as digits as its factorization.

40481204987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 40481204987 in words is "forty billion, four hundred eighty-one million, two hundred four thousand, nine hundred eighty-seven".