2151243552532 has 12 divisors (see below), whose sum is σ = 3866424223060. Its totient is φ = 1046550917376.

The previous prime is 2151243552457. The next prime is 2151243552631. The reversal of 2151243552532 is 2352553421512.

It can be written as a sum of positive squares in 2 ways, for example, as 1284400622596 + 866842929936 = 1133314^2 + 931044^2 .

It is a super-2 number, since 2×2151243552532² (a number of 25 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 3 ways as a sum of consecutive naturals, for example, 7267714557 + ... + 7267714852.

Almost surely, 2^{2151243552532} is an apocalyptic number.

It is an amenable number.

2151243552532 is a deficient number, since it is larger than the sum of its proper divisors (1715180670528).

2151243552532 is a wasteful number, since it uses less digits than its factorization.

2151243552532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14535429450 (or 14535429448 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The spelling of 2151243552532 in words is "two trillion, one hundred fifty-one billion, two hundred forty-three million, five hundred fifty-two thousand, five hundred thirty-two".