23212357770465 has 48 divisors (see below), whose sum is σ = 40853781368400. Its totient is φ = 12190018406400.

The previous prime is 23212357770449. The next prime is 23212357770467. The reversal of 23212357770465 is 56407775321232.

It is a happy number.

23212357770465 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 2 + 3 + 577 + 7 + 0 + 4 + 65 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1872171002529 + 21340186767936 = 1368273^2 + 4619544^2 .

It is not a de Polignac number, because 23212357770465 - 2⁴ = 23212357770449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23212357770467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3904390 + ... + 7852959.

It is an arithmetic number, because the mean of its divisors is an integer number (851120445175).

Almost surely, 2^{23212357770465} is an apocalyptic number.

It is an amenable number.

23212357770465 is a deficient number, since it is larger than the sum of its proper divisors (17641423597935).

23212357770465 is a wasteful number, since it uses less digits than its factorization.

23212357770465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11758034 (or 11758031 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 54.

The spelling of 23212357770465 in words is "twenty-three trillion, two hundred twelve billion, three hundred fifty-seven million, seven hundred seventy thousand, four hundred sixty-five".