9420783926401 has 4 divisors (see below), whose sum is σ = 9428047446532. Its totient is φ = 9413520406272.

The previous prime is 9420783926387. The next prime is 9420783926423. The reversal of 9420783926401 is 1046293870249.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9015600754801 + 405183171600 = 3002599^2 + 636540^2 .

It is a cyclic number.

It is not a de Polignac number, because 9420783926401 - 2¹³ = 9420783918209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9420783923401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3631758120 + ... + 3631760713.

It is an arithmetic number, because the mean of its divisors is an integer number (2357011861633).

Almost surely, 2^{9420783926401} is an apocalyptic number.

It is an amenable number.

9420783926401 is a deficient number, since it is larger than the sum of its proper divisors (7263520131).

9420783926401 is a wasteful number, since it uses less digits than its factorization.

9420783926401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263520130.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 9420783926401 in words is "nine trillion, four hundred twenty billion, seven hundred eighty-three million, nine hundred twenty-six thousand, four hundred one".