123456667890 has 32 divisors (see below), whose sum is σ = 296375054976. Its totient is φ = 32912994560.

The previous prime is 123456667883. The next prime is 123456667921. The reversal of 123456667890 is 98766654321.

It is a self number, because there is not a number n which added to its sum of digits gives 123456667890.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434262 + ... + 659921.

It is an arithmetic number, because the mean of its divisors is an integer number (9261720468).

It is a 2-persistent number, because it is pandigital, and so is 2⋅123456667890 = 246913335780, but 3⋅123456667890 = 370370003670 is not.

Almost surely, 2^123456667890 is an apocalyptic number.

123456667890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123456667890 is an abundant number, since it is smaller than the sum of its proper divisors (172918387086).

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

123456667890 is a wasteful number, since it uses less digits than its factorization.

123456667890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097954.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 123456667890 in words is "one hundred twenty-three billion, four hundred fifty-six million, six hundred sixty-seven thousand, eight hundred ninety".