987654226756 has 6 divisors (see below), whose sum is σ = 1728394896830. Its totient is φ = 493827113376.

The previous prime is 987654226753. The next prime is 987654226781. The reversal of 987654226756 is 657622456789.

987654226756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 977567238400 + 10086988356 = 988720^2 + 100434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 987654226691 and 987654226700.

It is not an unprimeable number, because it can be changed into a prime (987654226751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123456778341 + ... + 123456778348.

Almost surely, 2^987654226756 is an apocalyptic number.

It is an amenable number.

987654226756 is a deficient number, since it is larger than the sum of its proper divisors (740740670074).

987654226756 is a wasteful number, since it uses less digits than its factorization.

987654226756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246913556693 (or 246913556691 counting only the distinct ones).

The product of its digits is 304819200, while the sum is 67.

The spelling of 987654226756 in words is "nine hundred eighty-seven billion, six hundred fifty-four million, two hundred twenty-six thousand, seven hundred fifty-six".