20343762436 has 24 divisors (see below), whose sum is σ = 37700885376. Its totient is φ = 9572242560.

The previous prime is 20343762401. The next prime is 20343762449. The reversal of 20343762436 is 63426734302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648841 + ... + 679471.

It is an arithmetic number, because the mean of its divisors is an integer number (1570870224).

Almost surely, 2^20343762436 is an apocalyptic number.

It is an amenable number.

20343762436 is a deficient number, since it is larger than the sum of its proper divisors (17357122940).

20343762436 is a wasteful number, since it uses less digits than its factorization.

20343762436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40419 (or 40417 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 40.

The spelling of 20343762436 in words is "twenty billion, three hundred forty-three million, seven hundred sixty-two thousand, four hundred thirty-six".