3722013509 has 4 divisors (see below), whose sum is σ = 3722820480. Its totient is φ = 3721206540.

The previous prime is 3722013469. The next prime is 3722013523. The reversal of 3722013509 is 9053102273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9053102273 = 19 ⋅476479067.

It is a cyclic number.

It is not a de Polignac number, because 3722013509 - 2¹⁶ = 3721947973 is a prime.

It is a super-2 number, since 2×3722013509² = 27706769122356986162, which 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 (3722013209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396527 + ... + 405804.

It is an arithmetic number, because the mean of its divisors is an integer number (930705120).

Almost surely, 2^3722013509 is an apocalyptic number.

It is an amenable number.

3722013509 is a deficient number, since it is larger than the sum of its proper divisors (806971).

3722013509 is an equidigital number, since it uses as much as digits as its factorization.

3722013509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806970.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 3722013509 is about 61008.3068852103. The cubic root of 3722013509 is about 1549.7416855692.

The spelling of 3722013509 in words is "three billion, seven hundred twenty-two million, thirteen thousand, five hundred nine".