78284351083 has 4 divisors (see below), whose sum is σ = 79356739528. Its totient is φ = 77211962640.

The previous prime is 78284351039. The next prime is 78284351111. The reversal of 78284351083 is 38015348287.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78284351083 - 2¹³ = 78284342891 is a prime.

It is a super-2 number, since 2×78284351083² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78284351983) 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, 536194113 + ... + 536194258.

It is an arithmetic number, because the mean of its divisors is an integer number (19839184882).

Almost surely, 2^78284351083 is an apocalyptic number.

78284351083 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

78284351083 is a deficient number, since it is larger than the sum of its proper divisors (1072388445).

78284351083 is a wasteful number, since it uses less digits than its factorization.

78284351083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072388444.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 78284351083 in words is "seventy-eight billion, two hundred eighty-four million, three hundred fifty-one thousand, eighty-three".