139098086266 has 4 divisors (see below), whose sum is σ = 208647129402. Its totient is φ = 69549043132.

The previous prime is 139098086219. The next prime is 139098086293. The reversal of 139098086266 is 662680890931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 135513070641 + 3585015625 = 368121^2 + 59875^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 139098086266.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34774521565 + ... + 34774521568.

Almost surely, 2^139098086266 is an apocalyptic number.

139098086266 is a deficient number, since it is larger than the sum of its proper divisors (69549043136).

139098086266 is an equidigital number, since it uses as much as digits as its factorization.

139098086266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69549043135.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 139098086266 in words is "one hundred thirty-nine billion, ninety-eight million, eighty-six thousand, two hundred sixty-six".