3472901991531 has 48 divisors (see below), whose sum is σ = 6266098096128. Its totient is φ = 1807528262400.

The previous prime is 3472901991511. The next prime is 3472901991557. The reversal of 3472901991531 is 1351991092743.

3472901991531 is a `hidden beast` number, since 3 + 4 + 7 + 2 + 9 + 0 + 19 + 91 + 531 = 666.

3472901991531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3472901991531 - 2¹⁷ = 3472901860459 is a prime.

It is a super-2 number, since 2×3472901991531² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3472901991511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52267965 + ... + 52334366.

It is an arithmetic number, because the mean of its divisors is an integer number (130543710336).

Almost surely, 2^{3472901991531} is an apocalyptic number.

3472901991531 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3472901991531 is a deficient number, since it is larger than the sum of its proper divisors (2793196104597).

3472901991531 is a wasteful number, since it uses less digits than its factorization.

3472901991531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104602392 (or 104602389 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 3472901991531 in words is "three trillion, four hundred seventy-two billion, nine hundred one million, nine hundred ninety-one thousand, five hundred thirty-one".