123941892690 has 512 divisors, whose sum is σ = 459294105600. Its totient is φ = 22962216960.

The previous prime is 123941892649. The next prime is 123941892733. The reversal of 123941892690 is 96298149321.

123941892690 is a `hidden beast` number, since 12 + 394 + 189 + 2 + 69 + 0 = 666.

It is a super-2 number, since 2×123941892690² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 6705942 + ... + 6724398.

It is an arithmetic number, because the mean of its divisors is an integer number (897058800).

Almost surely, 2^123941892690 is an apocalyptic number.

123941892690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123941892690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229647052800).

123941892690 is an abundant number, since it is smaller than the sum of its proper divisors (335352212910).

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

123941892690 is a wasteful number, since it uses less digits than its factorization.

123941892690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18527 (or 18521 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 123941892690 in words is "one hundred twenty-three billion, nine hundred forty-one million, eight hundred ninety-two thousand, six hundred ninety".