87474744401 has 4 divisors (see below), whose sum is σ = 95426993904. Its totient is φ = 79522494900.

The previous prime is 87474744367. The next prime is 87474744403. The reversal of 87474744401 is 10444747478.

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.

It is a cyclic number.

It is not a de Polignac number, because 87474744401 - 2²⁶ = 87407635537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87474744401.

It is not an unprimeable number, because it can be changed into a prime (87474744403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3976124735 + ... + 3976124756.

It is an arithmetic number, because the mean of its divisors is an integer number (23856748476).

Almost surely, 2^87474744401 is an apocalyptic number.

It is an amenable number.

87474744401 is a deficient number, since it is larger than the sum of its proper divisors (7952249503).

87474744401 is a wasteful number, since it uses less digits than its factorization.

87474744401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952249502.

The product of its (nonzero) digits is 2809856, while the sum is 50.

The spelling of 87474744401 in words is "eighty-seven billion, four hundred seventy-four million, seven hundred forty-four thousand, four hundred one".