287044617972 has 72 divisors (see below), whose sum is σ = 779221936416. Its totient is φ = 82002134592.

The previous prime is 287044617931. The next prime is 287044618031. The reversal of 287044617972 is 279716440782.

It is a super-2 number, since 2×287044617972² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5272563 + ... + 5326725.

Almost surely, 2^287044617972 is an apocalyptic number.

It is an amenable number.

287044617972 is an abundant number, since it is smaller than the sum of its proper divisors (492177318444).

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

287044617972 is a wasteful number, since it uses less digits than its factorization.

287044617972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63197 (or 63188 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 57.

It can be divided in two parts, 28704 and 4617972, that added together give a triangular number (4646676 = T₃₀₄₈).

The spelling of 287044617972 in words is "two hundred eighty-seven billion, forty-four million, six hundred seventeen thousand, nine hundred seventy-two".