9999995401 has 4 divisors (see below), whose sum is σ = 10909085904. Its totient is φ = 9090904900.

The previous prime is 9999995377. The next prime is 9999995477. The reversal of 9999995401 is 1045999999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1045999999 = 11 ⋅95090909.

It is not a de Polignac number, because 9999995401 - 2¹³ = 9999987209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9999995701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454545235 + ... + 454545256.

It is an arithmetic number, because the mean of its divisors is an integer number (2727271476).

Almost surely, 2^9999995401 is an apocalyptic number.

It is an amenable number.

9999995401 is a deficient number, since it is larger than the sum of its proper divisors (909090503).

9999995401 is a wasteful number, since it uses less digits than its factorization.

9999995401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909090502.

The product of its (nonzero) digits is 10628820, while the sum is 64.

The square root of 9999995401 is about 99999.9770049974. The cubic root of 9999995401 is about 2154.4343597570.

The spelling of 9999995401 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-five thousand, four hundred one".