10202567147842 has 4 divisors (see below), whose sum is σ = 15303850721766. Its totient is φ = 5101283573920.

The previous prime is 10202567147807. The next prime is 10202567147863. The reversal of 10202567147842 is 24874176520201.

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., 10148436006921 + 54131140921 = 3185661^2 + 232661^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550641786959 + ... + 2550641786962.

Almost surely, 2^{10202567147842} is an apocalyptic number.

10202567147842 is a deficient number, since it is larger than the sum of its proper divisors (5101283573924).

10202567147842 is an equidigital number, since it uses as much as digits as its factorization.

10202567147842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101283573923.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 10202567147842 in words is "ten trillion, two hundred two billion, five hundred sixty-seven million, one hundred forty-seven thousand, eight hundred forty-two".