123456778348 has 24 divisors (see below), whose sum is σ = 216745644528. Its totient is φ = 61529588736.

The previous prime is 123456778343. The next prime is 123456778349. The reversal of 123456778348 is 843877654321.

It is a super-2 number, since 2×123456778348² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123456778292 and 123456778301.

It is not an unprimeable number, because it can be changed into a prime (123456778343) 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, 3942240 + ... + 3973432.

It is an arithmetic number, because the mean of its divisors is an integer number (9031068522).

Almost surely, 2^123456778348 is an apocalyptic number.

It is an amenable number.

123456778348 is a deficient number, since it is larger than the sum of its proper divisors (93288866180).

123456778348 is a wasteful number, since it uses less digits than its factorization.

123456778348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34353 (or 34351 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 58.

The spelling of 123456778348 in words is "one hundred twenty-three billion, four hundred fifty-six million, seven hundred seventy-eight thousand, three hundred forty-eight".