400077777703 has 2 divisors, whose sum is σ = 400077777704. Its totient is φ = 400077777702.

The previous prime is 400077777689. The next prime is 400077777713. The reversal of 400077777703 is 307777770004.

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-400077777703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400077777713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200038888851 + 200038888852.

It is an arithmetic number, because the mean of its divisors is an integer number (200038888852).

Almost surely, 2^400077777703 is an apocalyptic number.

400077777703 is a deficient number, since it is larger than the sum of its proper divisors (1).

400077777703 is an equidigital number, since it uses as much as digits as its factorization.

400077777703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411788, while the sum is 49.

The spelling of 400077777703 in words is "four hundred billion, seventy-seven million, seven hundred seventy-seven thousand, seven hundred three".