123670344780 has 96 divisors (see below), whose sum is σ = 389502348480. Its totient is φ = 32978746944.

The previous prime is 123670344773. The next prime is 123670344817. The reversal of 123670344780 is 87443076321.

123670344780 is a `hidden beast` number, since 1 + 236 + 7 + 0 + 344 + 78 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1369959 + ... + 1457438.

It is an arithmetic number, because the mean of its divisors is an integer number (4057316130).

Almost surely, 2^123670344780 is an apocalyptic number.

123670344780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123670344780 is an abundant number, since it is smaller than the sum of its proper divisors (265832003700).

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

123670344780 is an equidigital number, since it uses as much as digits as its factorization.

123670344780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827427 (or 2827407 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 123670344780 in words is "one hundred twenty-three billion, six hundred seventy million, three hundred forty-four thousand, seven hundred eighty".