212691474000 has 160 divisors (see below), whose sum is σ = 761908318080. Its totient is φ = 56717712000.

The previous prime is 212691473893. The next prime is 212691474019. The reversal of 212691474000 is 474196212.

It is a happy number.

212691474000 is a `hidden beast` number, since 2 + 126 + 91 + 47 + 400 + 0 = 666.

It is a super-3 number, since 3×212691474000³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1915366 + ... + 2023365.

It is an arithmetic number, because the mean of its divisors is an integer number (4761926988).

Almost surely, 2^212691474000 is an apocalyptic number.

212691474000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212691474000 is an abundant number, since it is smaller than the sum of its proper divisors (549216844080).

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

212691474000 is a wasteful number, since it uses less digits than its factorization.

212691474000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938763 (or 3938741 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 212691474000 in words is "two hundred twelve billion, six hundred ninety-one million, four hundred seventy-four thousand".