42909088401 has 6 divisors (see below), whose sum is σ = 61979794370. Its totient is φ = 28606058928.

The previous prime is 42909088381. The next prime is 42909088403. The reversal of 42909088401 is 10488090924.

It can be written as a sum of positive squares in only one way, i.e., 41698048401 + 1211040000 = 204201^2 + 34800^2 .

It is not a de Polignac number, because 42909088401 - 2⁶ = 42909088337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42909088403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2383838236 + ... + 2383838253.

Almost surely, 2^42909088401 is an apocalyptic number.

It is an amenable number.

42909088401 is a deficient number, since it is larger than the sum of its proper divisors (19070705969).

42909088401 is a wasteful number, since it uses less digits than its factorization.

42909088401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767676495 (or 4767676492 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 42909088401 in words is "forty-two billion, nine hundred nine million, eighty-eight thousand, four hundred one".