39404854487 has 4 divisors (see below), whose sum is σ = 39408674640. Its totient is φ = 39401034336.

The previous prime is 39404854469. The next prime is 39404854493. The reversal of 39404854487 is 78445840493.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 39404854487 - 2⁸ = 39404854231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39404854427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894562 + ... + 1915247.

It is an arithmetic number, because the mean of its divisors is an integer number (9852168660).

Almost surely, 2^39404854487 is an apocalyptic number.

39404854487 is a deficient number, since it is larger than the sum of its proper divisors (3820153).

39404854487 is a wasteful number, since it uses less digits than its factorization.

39404854487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820152.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 39404854487 in words is "thirty-nine billion, four hundred four million, eight hundred fifty-four thousand, four hundred eighty-seven".