1401626745746 has 4 divisors (see below), whose sum is σ = 2102440118622. Its totient is φ = 700813372872.

The previous prime is 1401626745731. The next prime is 1401626745793. The reversal of 1401626745746 is 6475476261041.

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., 1320281431225 + 81345314521 = 1149035^2 + 285211^2 .

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, 350406686435 + ... + 350406686438.

Almost surely, 2^{1401626745746} is an apocalyptic number.

1401626745746 is a deficient number, since it is larger than the sum of its proper divisors (700813372876).

1401626745746 is an equidigital number, since it uses as much as digits as its factorization.

1401626745746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700813372875.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 1401626745746 in words is "one trillion, four hundred one billion, six hundred twenty-six million, seven hundred forty-five thousand, seven hundred forty-six".