814415938548 has 12 divisors (see below), whose sum is σ = 1900303856640. Its totient is φ = 271471979512.

The previous prime is 814415938547. The next prime is 814415938591. The reversal of 814415938548 is 845839514418.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×814415938548² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 814415938491 and 814415938500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814415938543) 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, 33933997428 + ... + 33933997451.

It is an arithmetic number, because the mean of its divisors is an integer number (158358654720).

Almost surely, 2^814415938548 is an apocalyptic number.

It is an amenable number.

814415938548 is an abundant number, since it is smaller than the sum of its proper divisors (1085887918092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

814415938548 is a wasteful number, since it uses less digits than its factorization.

814415938548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67867994886 (or 67867994884 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 60.

The spelling of 814415938548 in words is "eight hundred fourteen billion, four hundred fifteen million, nine hundred thirty-eight thousand, five hundred forty-eight".