1061617286872 has 32 divisors (see below), whose sum is σ = 2009661015600. Its totient is φ = 525731917824.

The previous prime is 1061617286831. The next prime is 1061617286927. The reversal of 1061617286872 is 2786827161601.

It is a super-2 number, since 2×1061617286872² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163997 + ... + 1864972.

Almost surely, 2^{1061617286872} is an apocalyptic number.

It is an amenable number.

1061617286872 is a deficient number, since it is larger than the sum of its proper divisors (948043728728).

1061617286872 is a wasteful number, since it uses less digits than its factorization.

1061617286872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029395 (or 3029391 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 1061617286872 in words is "one trillion, sixty-one billion, six hundred seventeen million, two hundred eighty-six thousand, eight hundred seventy-two".