6475400987 has 8 divisors (see below), whose sum is σ = 7069827072. Its totient is φ = 5881933800.

The previous prime is 6475400977. The next prime is 6475400989. The reversal of 6475400987 is 7890045746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6475400987 - 2¹⁰ = 6475399963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6475400989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225563 + ... + 252644.

It is an arithmetic number, because the mean of its divisors is an integer number (883728384).

Almost surely, 2^6475400987 is an apocalyptic number.

6475400987 is a deficient number, since it is larger than the sum of its proper divisors (594426085).

6475400987 is a wasteful number, since it uses less digits than its factorization.

6475400987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479449.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 6475400987 is about 80469.8762705648. The cubic root of 6475400987 is about 1863.8983435500.

The spelling of 6475400987 in words is "six billion, four hundred seventy-five million, four hundred thousand, nine hundred eighty-seven".