18964264963 has 8 divisors (see below), whose sum is σ = 21776165120. Its totient is φ = 16178044680.

The previous prime is 18964264939. The next prime is 18964264993. The reversal of 18964264963 is 36946246981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18964264963 - 2²¹ = 18962167811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18964264898 and 18964264907.

It is not an unprimeable number, because it can be changed into a prime (18964264903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6418383 + ... + 6421336.

It is an arithmetic number, because the mean of its divisors is an integer number (2722020640).

Almost surely, 2^18964264963 is an apocalyptic number.

18964264963 is a deficient number, since it is larger than the sum of its proper divisors (2811900157).

18964264963 is a wasteful number, since it uses less digits than its factorization.

18964264963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12839937.

The product of its digits is 13436928, while the sum is 58.

The spelling of 18964264963 in words is "eighteen billion, nine hundred sixty-four million, two hundred sixty-four thousand, nine hundred sixty-three".