20148626398 has 4 divisors (see below), whose sum is σ = 30222939600. Its totient is φ = 10074313198.

The previous prime is 20148626387. The next prime is 20148626417. The reversal of 20148626398 is 89362684102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5037156598 + ... + 5037156601.

It is an arithmetic number, because the mean of its divisors is an integer number (7555734900).

Almost surely, 2^20148626398 is an apocalyptic number.

20148626398 is a deficient number, since it is larger than the sum of its proper divisors (10074313202).

20148626398 is a wasteful number, since it uses less digits than its factorization.

20148626398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074313201.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 20148626398 in words is "twenty billion, one hundred forty-eight million, six hundred twenty-six thousand, three hundred ninety-eight".