139858819898 has 16 divisors (see below), whose sum is σ = 239820783360. Its totient is φ = 59923792656.

The previous prime is 139858819853. The next prime is 139858819921. The reversal of 139858819898 is 898918858931.

It is a super-2 number, since 2×139858819898² (a number of 23 digits) contains 22 as substring.

It is a Curzon 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, 1253033 + ... + 1360076.

It is an arithmetic number, because the mean of its divisors is an integer number (14988798960).

Almost surely, 2^139858819898 is an apocalyptic number.

139858819898 is a deficient number, since it is larger than the sum of its proper divisors (99961963462).

139858819898 is a wasteful number, since it uses less digits than its factorization.

139858819898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616941.

The product of its digits is 358318080, while the sum is 77.

The spelling of 139858819898 in words is "one hundred thirty-nine billion, eight hundred fifty-eight million, eight hundred nineteen thousand, eight hundred ninety-eight".