2151811622534 has 8 divisors (see below), whose sum is σ = 3688819924368. Its totient is φ = 922204981080.

The previous prime is 2151811622461. The next prime is 2151811622549. The reversal of 2151811622534 is 4352261181512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2151811622491 and 2151811622500.

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, 76850415077 + ... + 76850415104.

It is an arithmetic number, because the mean of its divisors is an integer number (461102490546).

Almost surely, 2^{2151811622534} is an apocalyptic number.

2151811622534 is a deficient number, since it is larger than the sum of its proper divisors (1537008301834).

2151811622534 is a wasteful number, since it uses less digits than its factorization.

2151811622534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153700830190.

The product of its digits is 115200, while the sum is 41.

The spelling of 2151811622534 in words is "two trillion, one hundred fifty-one billion, eight hundred eleven million, six hundred twenty-two thousand, five hundred thirty-four".