612378282849 has 16 divisors (see below), whose sum is σ = 833922289920. Its totient is φ = 399544179840.

The previous prime is 612378282809. The next prime is 612378282853. The reversal of 612378282849 is 948282873216.

It is not a de Polignac number, because 612378282849 - 2⁹ = 612378282337 is a prime.

It is a super-2 number, since 2×612378282849² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612378282792 and 612378282801.

It is not an unprimeable number, because it can be changed into a prime (612378282809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2715669 + ... + 2932509.

It is an arithmetic number, because the mean of its divisors is an integer number (52120143120).

Almost surely, 2^612378282849 is an apocalyptic number.

It is an amenable number.

612378282849 is a deficient number, since it is larger than the sum of its proper divisors (221544007071).

612378282849 is a wasteful number, since it uses less digits than its factorization.

612378282849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236920.

The product of its digits is 18579456, while the sum is 60.

The spelling of 612378282849 in words is "six hundred twelve billion, three hundred seventy-eight million, two hundred eighty-two thousand, eight hundred forty-nine".