212476451439 has 64 divisors (see below), whose sum is σ = 332436070400. Its totient is φ = 120662680320.

The previous prime is 212476451437. The next prime is 212476451471. The reversal of 212476451439 is 934154674212.

It is not a de Polignac number, because 212476451439 - 2¹ = 212476451437 is a prime.

It is a super-2 number, since 2×212476451439² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212476451431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135593634 + ... + 135595200.

It is an arithmetic number, because the mean of its divisors is an integer number (5194313600).

Almost surely, 2^212476451439 is an apocalyptic number.

212476451439 is a deficient number, since it is larger than the sum of its proper divisors (119959618961).

212476451439 is a wasteful number, since it uses less digits than its factorization.

212476451439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325 (or 2311 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 212476451439 in words is "two hundred twelve billion, four hundred seventy-six million, four hundred fifty-one thousand, four hundred thirty-nine".