2631622001 has 4 divisors (see below), whose sum is σ = 2632121712. Its totient is φ = 2631122292.

The previous prime is 2631621953. The next prime is 2631622031. The reversal of 2631622001 is 1002261362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2631622001 - 2¹⁰ = 2631620977 is a prime.

It is a super-2 number, since 2×2631622001² = 13850868712294488002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631622031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241871 + ... + 252516.

It is an arithmetic number, because the mean of its divisors is an integer number (658030428).

Almost surely, 2^2631622001 is an apocalyptic number.

It is an amenable number.

2631622001 is a deficient number, since it is larger than the sum of its proper divisors (499711).

2631622001 is an equidigital number, since it uses as much as digits as its factorization.

2631622001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499710.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2631622001 is about 51299.3372374342. The cubic root of 2631622001 is about 1380.6210886632.

Adding to 2631622001 its reverse (1002261362), we get a palindrome (3633883363).

The spelling of 2631622001 in words is "two billion, six hundred thirty-one million, six hundred twenty-two thousand, one".