1400926531399 has 4 divisors (see below), whose sum is σ = 1438789410664. Its totient is φ = 1363063652136.

The previous prime is 1400926531397. The next prime is 1400926531421. The reversal of 1400926531399 is 9931356290041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400926531399 - 2¹ = 1400926531397 is a prime.

It is a super-3 number, since 3×1400926531399³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400926531397) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 18931439577 + ... + 18931439650.

It is an arithmetic number, because the mean of its divisors is an integer number (359697352666).

Almost surely, 2^{1400926531399} is an apocalyptic number.

1400926531399 is a deficient number, since it is larger than the sum of its proper divisors (37862879265).

1400926531399 is an equidigital number, since it uses as much as digits as its factorization.

1400926531399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37862879264.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 1400926531399 in words is "one trillion, four hundred billion, nine hundred twenty-six million, five hundred thirty-one thousand, three hundred ninety-nine".