1913473733 has 4 divisors (see below), whose sum is σ = 1914520608. Its totient is φ = 1912426860.

The previous prime is 1913473693. The next prime is 1913473739. The reversal of 1913473733 is 3373743191.

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.

It is a cyclic number.

It is not a de Polignac number, because 1913473733 - 2⁶ = 1913473669 is a prime.

It is a super-2 number, since 2×1913473733² = 7322763453761910578, 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 (1913473739) 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, 520691 + ... + 524352.

It is an arithmetic number, because the mean of its divisors is an integer number (478630152).

Almost surely, 2^1913473733 is an apocalyptic number.

It is an amenable number.

1913473733 is a deficient number, since it is larger than the sum of its proper divisors (1046875).

1913473733 is a wasteful number, since it uses less digits than its factorization.

1913473733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046874.

The product of its digits is 142884, while the sum is 41.

The square root of 1913473733 is about 43743.2707167628. The cubic root of 1913473733 is about 1241.4831656595.

The spelling of 1913473733 in words is "one billion, nine hundred thirteen million, four hundred seventy-three thousand, seven hundred thirty-three".