1916954367 has 4 divisors (see below), whose sum is σ = 2555939160. Its totient is φ = 1277969576.

The previous prime is 1916954359. The next prime is 1916954371. The reversal of 1916954367 is 7634596191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7634596191 = 3 ⋅2544865397.

It is a cyclic number.

It is not a de Polignac number, because 1916954367 - 2³ = 1916954359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916954387) 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, 319492392 + ... + 319492397.

It is an arithmetic number, because the mean of its divisors is an integer number (638984790).

Almost surely, 2^1916954367 is an apocalyptic number.

1916954367 is a deficient number, since it is larger than the sum of its proper divisors (638984793).

1916954367 is an equidigital number, since it uses as much as digits as its factorization.

1916954367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638984792.

The product of its digits is 1224720, while the sum is 51.

The square root of 1916954367 is about 43783.0374346047. The cubic root of 1916954367 is about 1242.2354677880.

It can be divided in two parts, 19169 and 54367, that added together give a triangular number (73536 = T₃₈₃).

The spelling of 1916954367 in words is "one billion, nine hundred sixteen million, nine hundred fifty-four thousand, three hundred sixty-seven".