6467542402 has 4 divisors (see below), whose sum is σ = 9701313606. Its totient is φ = 3233771200.

The previous prime is 6467542381. The next prime is 6467542423. The reversal of 6467542402 is 2042457646.

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

It is an interprime number because it is at equal distance from previous prime (6467542381) and next prime (6467542423).

It can be written as a sum of positive squares in only one way, i.e., 6169945401 + 297597001 = 78549^2 + 17251^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616885599 + ... + 1616885602.

Almost surely, 2^6467542402 is an apocalyptic number.

6467542402 is a deficient number, since it is larger than the sum of its proper divisors (3233771204).

6467542402 is a wasteful number, since it uses less digits than its factorization.

6467542402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233771203.

The product of its (nonzero) digits is 322560, while the sum is 40.

The square root of 6467542402 is about 80421.0320873837. The cubic root of 6467542402 is about 1863.1440256287.

The spelling of 6467542402 in words is "six billion, four hundred sixty-seven million, five hundred forty-two thousand, four hundred two".