1007921052506 has 4 divisors (see below), whose sum is σ = 1511881578762. Its totient is φ = 503960526252.

The previous prime is 1007921052451. The next prime is 1007921052529. The reversal of 1007921052506 is 6052501297001.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 990114552025 + 17806500481 = 995045^2 + 133441^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1007921052506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251980263125 + ... + 251980263128.

Almost surely, 2^{1007921052506} is an apocalyptic number.

1007921052506 is a deficient number, since it is larger than the sum of its proper divisors (503960526256).

1007921052506 is an equidigital number, since it uses as much as digits as its factorization.

1007921052506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503960526255.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 1007921052506 in words is "one trillion, seven billion, nine hundred twenty-one million, fifty-two thousand, five hundred six".