1117654672 has 20 divisors (see below), whose sum is σ = 2206315260. Its totient is φ = 548283008.

The previous prime is 1117654669. The next prime is 1117654721. The reversal of 1117654672 is 2764567111.

It can be written as a sum of positive squares in 2 ways, for example, as 289136016 + 828518656 = 17004^2 + 28784^2 .

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, 658147 + ... + 659842.

It is an arithmetic number, because the mean of its divisors is an integer number (110315763).

Almost surely, 2^1117654672 is an apocalyptic number.

It is an amenable number.

1117654672 is a deficient number, since it is larger than the sum of its proper divisors (1088660588).

1117654672 is a wasteful number, since it uses less digits than its factorization.

1117654672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318050 (or 1318044 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 1117654672 is about 33431.3426592472. The cubic root of 1117654672 is about 1037.7734267870.

The spelling of 1117654672 in words is "one billion, one hundred seventeen million, six hundred fifty-four thousand, six hundred seventy-two".