407780655841 has 6 divisors (see below), whose sum is σ = 441561302070. Its totient is φ = 376412912928.

The previous prime is 407780655833. The next prime is 407780655847. The reversal of 407780655841 is 148556087704.

It can be written as a sum of positive squares in 3 ways, for example, as 11641331025 + 396139324816 = 107895^2 + 629396^2 .

It is not a de Polignac number, because 407780655841 - 2³ = 407780655833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407780655847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206451476 + ... + 1206451813.

It is an arithmetic number, because the mean of its divisors is an integer number (73593550345).

Almost surely, 2^407780655841 is an apocalyptic number.

It is an amenable number.

407780655841 is a deficient number, since it is larger than the sum of its proper divisors (33780646229).

407780655841 is a wasteful number, since it uses less digits than its factorization.

407780655841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412903315 (or 2412903302 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 407780655841 in words is "four hundred seven billion, seven hundred eighty million, six hundred fifty-five thousand, eight hundred forty-one".