63780407401 has 4 divisors (see below), whose sum is σ = 63786106692. Its totient is φ = 63774708112.

The previous prime is 63780407377. The next prime is 63780407417. The reversal of 63780407401 is 10470408736.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25784651776 + 37995755625 = 160576^2 + 194925^2 .

It is a cyclic number.

It is not a de Polignac number, because 63780407401 - 2³¹ = 61632923753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63780407461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2832826 + ... + 2855251.

It is an arithmetic number, because the mean of its divisors is an integer number (15946526673).

Almost surely, 2^63780407401 is an apocalyptic number.

It is an amenable number.

63780407401 is a deficient number, since it is larger than the sum of its proper divisors (5699291).

63780407401 is a wasteful number, since it uses less digits than its factorization.

63780407401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699290.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 63780407401 in words is "sixty-three billion, seven hundred eighty million, four hundred seven thousand, four hundred one".