907120987922 has 6 divisors (see below), whose sum is σ = 1360683502293. Its totient is φ = 453559820492.

The previous prime is 907120987879. The next prime is 907120987931. The reversal of 907120987922 is 229789021709.

It can be written as a sum of positive squares in 2 ways, for example, as 714293735281 + 192827252641 = 845159^2 + 439121^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=673469.

It is a super-3 number, since 3×907120987922³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1010204 + ... + 1683672.

Almost surely, 2^907120987922 is an apocalyptic number.

907120987922 is a deficient number, since it is larger than the sum of its proper divisors (453562514371).

907120987922 is an frugal number, since it uses more digits than its factorization.

907120987922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346940 (or 673471 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 907120987922 in words is "nine hundred seven billion, one hundred twenty million, nine hundred eighty-seven thousand, nine hundred twenty-two".