78152562212211 has 8 divisors (see below), whose sum is σ = 115781573647760. Its totient is φ = 52101708141456.

The previous prime is 78152562212183. The next prime is 78152562212227. The reversal of 78152562212211 is 11221226525187.

78152562212211 is a `hidden beast` number, since 7 + 8 + 1 + 5 + 2 + 5 + 622 + 1 + 2 + 2 + 11 = 666.

It is not a de Polignac number, because 78152562212211 - 2³⁴ = 78135382343027 is a prime.

It is a super-2 number, since 2×78152562212211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78152562212281) 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, 1447269670570 + ... + 1447269670623.

It is an arithmetic number, because the mean of its divisors is an integer number (14472696705970).

Almost surely, 2^{78152562212211} is an apocalyptic number.

78152562212211 is a deficient number, since it is larger than the sum of its proper divisors (37629011435549).

78152562212211 is a wasteful number, since it uses less digits than its factorization.

78152562212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894539341202 (or 2894539341196 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

Adding to 78152562212211 its reverse (11221226525187), we get a palindrome (89373788737398).

The spelling of 78152562212211 in words is "seventy-eight trillion, one hundred fifty-two billion, five hundred sixty-two million, two hundred twelve thousand, two hundred eleven".