401782343763 has 4 divisors (see below), whose sum is σ = 535709791688. Its totient is φ = 267854895840.

The previous prime is 401782343759. The next prime is 401782343827. The reversal of 401782343763 is 367343287104.

It is a happy number.

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

It is not a de Polignac number, because 401782343763 - 2² = 401782343759 is a prime.

It is a super-2 number, since 2×401782343763² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401782343563) 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, 66963723958 + ... + 66963723963.

It is an arithmetic number, because the mean of its divisors is an integer number (133927447922).

Almost surely, 2^401782343763 is an apocalyptic number.

401782343763 is a deficient number, since it is larger than the sum of its proper divisors (133927447925).

401782343763 is a wasteful number, since it uses less digits than its factorization.

401782343763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133927447924.

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 401782343763 in words is "four hundred one billion, seven hundred eighty-two million, three hundred forty-three thousand, seven hundred sixty-three".