8212306257045 has 36 divisors (see below), whose sum is σ = 15646366421868. Its totient is φ = 3981724243200.

The previous prime is 8212306257037. The next prime is 8212306257059. The reversal of 8212306257045 is 5407526032128.

8212306257045 is a `hidden beast` number, since 8 + 2 + 1 + 2 + 30 + 6 + 2 + 570 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 875933143569 + 7336373113476 = 935913^2 + 2708574^2 .

It is not a de Polignac number, because 8212306257045 - 2³ = 8212306257037 is a prime.

It is a super-2 number, since 2×8212306257045² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 754108996 + ... + 754119885.

Almost surely, 2^{8212306257045} is an apocalyptic number.

It is an amenable number.

8212306257045 is a deficient number, since it is larger than the sum of its proper divisors (7434060164823).

8212306257045 is a wasteful number, since it uses less digits than its factorization.

8212306257045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508228914 (or 1508228900 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 8212306257045 in words is "eight trillion, two hundred twelve billion, three hundred six million, two hundred fifty-seven thousand, forty-five".