402026505919 has 4 divisors (see below), whose sum is σ = 404918783080. Its totient is φ = 399134228760.

The previous prime is 402026505913. The next prime is 402026505929. The reversal of 402026505919 is 919505620204.

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 402026505919 - 2³ = 402026505911 is a prime.

It is a super-2 number, since 2×402026505919² (a number of 24 digits) contains 22 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 (402026505911) 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, 1446138372 + ... + 1446138649.

It is an arithmetic number, because the mean of its divisors is an integer number (101229695770).

Almost surely, 2^402026505919 is an apocalyptic number.

402026505919 is a deficient number, since it is larger than the sum of its proper divisors (2892277161).

402026505919 is a wasteful number, since it uses less digits than its factorization.

402026505919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892277160.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 402026505919 in words is "four hundred two billion, twenty-six million, five hundred five thousand, nine hundred nineteen".