2636451121406 has 16 divisors (see below), whose sum is σ = 4012965698400. Its totient is φ = 1298819864160.

The previous prime is 2636451121399. The next prime is 2636451121427. The reversal of 2636451121406 is 6041211546362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5773121 + ... + 6213036.

It is an arithmetic number, because the mean of its divisors is an integer number (250810356150).

Almost surely, 2^{2636451121406} is an apocalyptic number.

2636451121406 is a deficient number, since it is larger than the sum of its proper divisors (1376514576994).

2636451121406 is a wasteful number, since it uses less digits than its factorization.

2636451121406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11987779.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 2636451121406 its reverse (6041211546362), we get a palindrome (8677662667768).

The spelling of 2636451121406 in words is "two trillion, six hundred thirty-six billion, four hundred fifty-one million, one hundred twenty-one thousand, four hundred six".