1916853437 has 4 divisors (see below), whose sum is σ = 2017740480. Its totient is φ = 1815966396.

The previous prime is 1916853403. The next prime is 1916853461. The reversal of 1916853437 is 7343586191.

It is a happy number.

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: 7343586191 = 331 ⋅22186061.

It is a cyclic number.

It is not a de Polignac number, because 1916853437 - 2¹⁸ = 1916591293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1916853391 and 1916853400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916853737) 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, 50443493 + ... + 50443530.

It is an arithmetic number, because the mean of its divisors is an integer number (504435120).

Almost surely, 2^1916853437 is an apocalyptic number.

It is an amenable number.

1916853437 is a deficient number, since it is larger than the sum of its proper divisors (100887043).

1916853437 is a wasteful number, since it uses less digits than its factorization.

1916853437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100887042.

The product of its digits is 544320, while the sum is 47.

The square root of 1916853437 is about 43781.8848041059. The cubic root of 1916853437 is about 1242.2136656647.

The spelling of 1916853437 in words is "one billion, nine hundred sixteen million, eight hundred fifty-three thousand, four hundred thirty-seven".