1401724766401 has 2 divisors, whose sum is σ = 1401724766402. Its totient is φ = 1401724766400.

The previous prime is 1401724766389. The next prime is 1401724766461. The reversal of 1401724766401 is 1046674271041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1399808428225 + 1916338176 = 1183135^2 + 43776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401724766401 - 2¹⁷ = 1401724635329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401724766461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700862383200 + 700862383201.

It is an arithmetic number, because the mean of its divisors is an integer number (700862383201).

Almost surely, 2^{1401724766401} is an apocalyptic number.

It is an amenable number.

1401724766401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401724766401 is an equidigital number, since it uses as much as digits as its factorization.

1401724766401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 1401724766401 in words is "one trillion, four hundred one billion, seven hundred twenty-four million, seven hundred sixty-six thousand, four hundred one".