13778493148 has 24 divisors (see below), whose sum is σ = 27814534272. Its totient is φ = 5849879664.

The previous prime is 13778493143. The next prime is 13778493173. The reversal of 13778493148 is 84139487731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13778493143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2296486 + ... + 2302477.

It is an arithmetic number, because the mean of its divisors is an integer number (1158938928).

Almost surely, 2^13778493148 is an apocalyptic number.

It is an amenable number.

13778493148 is an abundant number, since it is smaller than the sum of its proper divisors (14036041124).

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

13778493148 is a wasteful number, since it uses less digits than its factorization.

13778493148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599081 (or 4599079 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 55.

The spelling of 13778493148 in words is "thirteen billion, seven hundred seventy-eight million, four hundred ninety-three thousand, one hundred forty-eight".