3540947519 has 4 divisors (see below), whose sum is σ = 3542738760. Its totient is φ = 3539156280.

The previous prime is 3540947507. The next prime is 3540947539. The reversal of 3540947519 is 9157490453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9157490453 = 17 ⋅538675909.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3540947519 is a prime.

It is a super-2 number, since 2×3540947519² = 25076618664624510722, 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 (3540947539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892652 + ... + 896609.

It is an arithmetic number, because the mean of its divisors is an integer number (885684690).

Almost surely, 2^3540947519 is an apocalyptic number.

3540947519 is a deficient number, since it is larger than the sum of its proper divisors (1791241).

3540947519 is a wasteful number, since it uses less digits than its factorization.

3540947519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791240.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 3540947519 is about 59505.8612155139. The cubic root of 3540947519 is about 1524.1925341390.

It can be divided in two parts, 35409 and 47519, that added together give a palindrome (82928).

The spelling of 3540947519 in words is "three billion, five hundred forty million, nine hundred forty-seven thousand, five hundred nineteen".