7212436366157 has 6 divisors (see below), whose sum is σ = 7927719311694. Its totient is φ = 6556760332760.

The previous prime is 7212436366139. The next prime is 7212436366211. The reversal of 7212436366157 is 7516636342127.

It can be written as a sum of positive squares in only one way, i.e., 7199664201961 + 12772164196 = 2683219^2 + 113014^2 .

It is not a de Polignac number, because 7212436366157 - 2¹⁰ = 7212436365133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7212436366099 and 7212436366108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212436396157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29803455938 + ... + 29803456179.

It is an arithmetic number, because the mean of its divisors is an integer number (1321286551949).

Almost surely, 2^{7212436366157} is an apocalyptic number.

It is an amenable number.

7212436366157 is a deficient number, since it is larger than the sum of its proper divisors (715282945537).

7212436366157 is a wasteful number, since it uses less digits than its factorization.

7212436366157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59606912139 (or 59606912128 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 53.

The spelling of 7212436366157 in words is "seven trillion, two hundred twelve billion, four hundred thirty-six million, three hundred sixty-six thousand, one hundred fifty-seven".