383863267489 has 9 divisors (see below), whose sum is σ = 415671313203. Its totient is φ = 354327889032.

The previous prime is 383863267483. The next prime is 383863267507. The reversal of 383863267489 is 984762368383.

The square root of 383863267489 is 619567.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 56784507025 + 327078760464 = 238295^2 + 571908^2 .

It is not a de Polignac number, because 383863267489 - 2²³ = 383854878881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383863267483) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8030542 + ... + 8078200.

It is an arithmetic number, because the mean of its divisors is an integer number (46185701467).

Almost surely, 2^383863267489 is an apocalyptic number.

383863267489 is the 619567-th square number.

383863267489 is the 309784-th centered octagonal number.

It is an amenable number.

383863267489 is a deficient number, since it is larger than the sum of its proper divisors (31808045714).

383863267489 is an frugal number, since it uses more digits than its factorization.

383863267489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95344 (or 47672 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 67.

The spelling of 383863267489 in words is "three hundred eighty-three billion, eight hundred sixty-three million, two hundred sixty-seven thousand, four hundred eighty-nine".