123426653856 has 192 divisors, whose sum is σ = 359981314560. Its totient is φ = 36712719360.

The previous prime is 123426653843. The next prime is 123426653869. The reversal of 123426653856 is 658356624321.

It is an interprime number because it is at equal distance from previous prime (123426653843) and next prime (123426653869).

It is a junction number, because it is equal to n+sod(n) for n = 123426653799 and 123426653808.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62116095 + ... + 62118081.

It is an arithmetic number, because the mean of its divisors is an integer number (1874902680).

Almost surely, 2^123426653856 is an apocalyptic number.

123426653856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123426653856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179990657280).

123426653856 is an abundant number, since it is smaller than the sum of its proper divisors (236554660704).

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

123426653856 is a wasteful number, since it uses less digits than its factorization.

123426653856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067 (or 3059 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 51.

The spelling of 123426653856 in words is "one hundred twenty-three billion, four hundred twenty-six million, six hundred fifty-three thousand, eight hundred fifty-six".