1078631783401 has 4 divisors (see below), whose sum is σ = 1084591075204. Its totient is φ = 1072672491600.

The previous prime is 1078631783363. The next prime is 1078631783413. The reversal of 1078631783401 is 1043871368701.

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 301704124176 + 776927659225 = 549276^2 + 881435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078631783401 - 2¹³ = 1078631775209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078631783101) 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, 2979645630 + ... + 2979645991.

It is an arithmetic number, because the mean of its divisors is an integer number (271147768801).

Almost surely, 2^{1078631783401} is an apocalyptic number.

It is an amenable number.

1078631783401 is a deficient number, since it is larger than the sum of its proper divisors (5959291803).

1078631783401 is an equidigital number, since it uses as much as digits as its factorization.

1078631783401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959291802.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 1078631783401 in words is "one trillion, seventy-eight billion, six hundred thirty-one million, seven hundred eighty-three thousand, four hundred one".