216730507774 has 8 divisors (see below), whose sum is σ = 354649921848. Its totient is φ = 98513867160.

The previous prime is 216730507769. The next prime is 216730507787. The reversal of 216730507774 is 477705037612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×216730507774² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4925693337 + ... + 4925693380.

It is an arithmetic number, because the mean of its divisors is an integer number (44331240231).

Almost surely, 2^216730507774 is an apocalyptic number.

216730507774 is a deficient number, since it is larger than the sum of its proper divisors (137919414074).

216730507774 is a wasteful number, since it uses less digits than its factorization.

216730507774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9851386730.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The spelling of 216730507774 in words is "two hundred sixteen billion, seven hundred thirty million, five hundred seven thousand, seven hundred seventy-four".