2115542403622 has 8 divisors (see below), whose sum is σ = 3218008163472. Its totient is φ = 1042873015800.

The previous prime is 2115542403581. The next prime is 2115542403629. The reversal of 2115542403622 is 2263042455112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115542403629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7449092829 + ... + 7449093112.

It is an arithmetic number, because the mean of its divisors is an integer number (402251020434).

Almost surely, 2^{2115542403622} is an apocalyptic number.

2115542403622 is a deficient number, since it is larger than the sum of its proper divisors (1102465759850).

2115542403622 is a wasteful number, since it uses less digits than its factorization.

2115542403622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14898186014.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 2115542403622 its reverse (2263042455112), we get a palindrome (4378584858734).

The spelling of 2115542403622 in words is "two trillion, one hundred fifteen billion, five hundred forty-two million, four hundred three thousand, six hundred twenty-two".