216758376970 has 16 divisors (see below), whose sum is σ = 410700083040. Its totient is φ = 82140016464.

The previous prime is 216758376943. The next prime is 216758376983. The reversal of 216758376970 is 79673857612.

It is a junction number, because it is equal to n+sod(n) for n = 216758376899 and 216758376908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570416592 + ... + 570416971.

It is an arithmetic number, because the mean of its divisors is an integer number (25668755190).

Almost surely, 2^216758376970 is an apocalyptic number.

216758376970 is a deficient number, since it is larger than the sum of its proper divisors (193941706070).

216758376970 is a wasteful number, since it uses less digits than its factorization.

216758376970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140833589.

The product of its (nonzero) digits is 26671680, while the sum is 61.

The spelling of 216758376970 in words is "two hundred sixteen billion, seven hundred fifty-eight million, three hundred seventy-six thousand, nine hundred seventy".