276742189680 has 320 divisors, whose sum is σ = 970737440256. Its totient is φ = 64627200000.

The previous prime is 276742189673. The next prime is 276742189699. The reversal of 276742189680 is 86981247672.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9851655 + ... + 9879705.

Almost surely, 2^276742189680 is an apocalyptic number.

276742189680 is a gapful number since it is divisible by the number (20) 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 276742189680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485368720128).

276742189680 is an abundant number, since it is smaller than the sum of its proper divisors (693995250576).

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

276742189680 is a wasteful number, since it uses less digits than its factorization.

276742189680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28216 (or 28210 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 276742189680 in words is "two hundred seventy-six billion, seven hundred forty-two million, one hundred eighty-nine thousand, six hundred eighty".