1010638775 has 12 divisors (see below), whose sum is σ = 1255924824. Its totient is φ = 806748000.

The previous prime is 1010638751. The next prime is 1010638799. The reversal of 1010638775 is 5778360101.

It is an interprime number because it is at equal distance from previous prime (1010638751) and next prime (1010638799).

It is not a de Polignac number, because 1010638775 - 2¹² = 1010634679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32321 + ... + 55370.

It is an arithmetic number, because the mean of its divisors is an integer number (104660402).

Almost surely, 2^1010638775 is an apocalyptic number.

1010638775 is a deficient number, since it is larger than the sum of its proper divisors (245286049).

1010638775 is an equidigital number, since it uses as much as digits as its factorization.

1010638775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88162 (or 88157 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1010638775 is about 31790.5453712263. The cubic root of 1010638775 is about 1003.5337561913.

Adding to 1010638775 its reverse (5778360101), we get a palindrome (6788998876).

The spelling of 1010638775 in words is "one billion, ten million, six hundred thirty-eight thousand, seven hundred seventy-five".