2631690001 has 8 divisors (see below), whose sum is σ = 2713977000. Its totient is φ = 2550264960.

The previous prime is 2631689993. The next prime is 2631690007. The reversal of 2631690001 is 1000961362.

2631690001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 51300²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 126787600 + 2504902401 = 11260^2 + 50049^2 .

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 2631690001 - 2³ = 2631689993 is a prime.

It is a super-2 number, since 2×2631690001² = 13851584522726760002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631690007) 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, 209286 + ... + 221503.

It is an arithmetic number, because the mean of its divisors is an integer number (339247125).

Almost surely, 2^2631690001 is an apocalyptic number.

It is an amenable number.

2631690001 is a deficient number, since it is larger than the sum of its proper divisors (82286999).

2631690001 is a wasteful number, since it uses less digits than its factorization.

2631690001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430979.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2631690001 is about 51300.0000097466. Note that the first 5 decimals coincide. The cubic root of 2631690001 is about 1380.6329801159.

The spelling of 2631690001 in words is "two billion, six hundred thirty-one million, six hundred ninety thousand, one".