139218623000 has 32 divisors (see below), whose sum is σ = 325771580160. Its totient is φ = 55687448800.

The previous prime is 139218622987. The next prime is 139218623023. The reversal of 139218623000 is 326812931.

It is a super-2 number, since 2×139218623000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69608312 + ... + 69610311.

It is an arithmetic number, because the mean of its divisors is an integer number (10180361880).

Almost surely, 2^139218623000 is an apocalyptic number.

139218623000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139218623000 is an abundant number, since it is smaller than the sum of its proper divisors (186552957160).

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

139218623000 is a wasteful number, since it uses less digits than its factorization.

139218623000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139218644 (or 139218630 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 139218623000 in words is "one hundred thirty-nine billion, two hundred eighteen million, six hundred twenty-three thousand".