3516031212872 has 8 divisors (see below), whose sum is σ = 6592558524150. Its totient is φ = 1758015606432.

The previous prime is 3516031212833. The next prime is 3516031212887. The reversal of 3516031212872 is 2782121306153.

It can be written as a sum of positive squares in only one way, i.e., 3444268303876 + 71762908996 = 1855874^2 + 267886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219751950797 + ... + 219751950812.

Almost surely, 2^{3516031212872} is an apocalyptic number.

It is an amenable number.

3516031212872 is a deficient number, since it is larger than the sum of its proper divisors (3076527311278).

3516031212872 is a wasteful number, since it uses less digits than its factorization.

3516031212872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439503901615 (or 439503901611 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 3516031212872 in words is "three trillion, five hundred sixteen billion, thirty-one million, two hundred twelve thousand, eight hundred seventy-two".