415403878723 has 4 divisors (see below), whose sum is σ = 417491335600. Its totient is φ = 413316421848.

The previous prime is 415403878649. The next prime is 415403878739. The reversal of 415403878723 is 327878304514.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415403878723 is a prime.

It is a super-2 number, since 2×415403878723² (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 (415403878763) 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, 1043728140 + ... + 1043728537.

It is an arithmetic number, because the mean of its divisors is an integer number (104372833900).

Almost surely, 2^415403878723 is an apocalyptic number.

415403878723 is a deficient number, since it is larger than the sum of its proper divisors (2087456877).

415403878723 is a wasteful number, since it uses less digits than its factorization.

415403878723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087456876.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 415403878723 in words is "four hundred fifteen billion, four hundred three million, eight hundred seventy-eight thousand, seven hundred twenty-three".