3249696511971 has 384 divisors, whose sum is σ = 6377005178880. Its totient is φ = 1618981862400.

The previous prime is 3249696511961. The next prime is 3249696511979. The reversal of 3249696511971 is 1791156969423.

3249696511971 is a `hidden beast` number, since 3 + 2 + 49 + 6 + 9 + 6 + 511 + 9 + 71 = 666.

It is not a de Polignac number, because 3249696511971 - 2²¹ = 3249694414819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 3249696511899 and 3249696511908.

It is not an unprimeable number, because it can be changed into a prime (3249696511979) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 5301299061 + ... + 5301299673.

It is an arithmetic number, because the mean of its divisors is an integer number (16606784320).

Almost surely, 2^{3249696511971} is an apocalyptic number.

3249696511971 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3249696511971 is a deficient number, since it is larger than the sum of its proper divisors (3127308666909).

3249696511971 is a wasteful number, since it uses less digits than its factorization.

3249696511971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 891 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The spelling of 3249696511971 in words is "three trillion, two hundred forty-nine billion, six hundred ninety-six million, five hundred eleven thousand, nine hundred seventy-one".