215029869912 has 224 divisors, whose sum is σ = 710178673680. Its totient is φ = 60147982080.

The previous prime is 215029869877. The next prime is 215029869949. The reversal of 215029869912 is 219968920512.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 705058 + ... + 962894.

Almost surely, 2^215029869912 is an apocalyptic number.

215029869912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215029869912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355089336840).

215029869912 is an abundant number, since it is smaller than the sum of its proper divisors (495148803768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215029869912 is a wasteful number, since it uses less digits than its factorization.

215029869912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257885 (or 257866 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 215029869912 in words is "two hundred fifteen billion, twenty-nine million, eight hundred sixty-nine thousand, nine hundred twelve".