2151213210435 has 64 divisors (see below), whose sum is σ = 3705549258240. Its totient is φ = 1061722183680.

The previous prime is 2151213210431. The next prime is 2151213210451. The reversal of 2151213210435 is 5340123121512.

It is a happy number.

It is not a de Polignac number, because 2151213210435 - 2² = 2151213210431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151213210431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43575996 + ... + 43625334.

It is an arithmetic number, because the mean of its divisors is an integer number (57899207160).

Almost surely, 2^{2151213210435} is an apocalyptic number.

2151213210435 is a deficient number, since it is larger than the sum of its proper divisors (1554336047805).

2151213210435 is a wasteful number, since it uses less digits than its factorization.

2151213210435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52228.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 2151213210435 its reverse (5340123121512), we get a palindrome (7491336331947).

The spelling of 2151213210435 in words is "two trillion, one hundred fifty-one billion, two hundred thirteen million, two hundred ten thousand, four hundred thirty-five".