815850815462 has 4 divisors (see below), whose sum is σ = 1223776223196. Its totient is φ = 407925407730.

The previous prime is 815850815401. The next prime is 815850815519. The reversal of 815850815462 is 264518058518.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×815850815462² (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 as a sum of consecutive naturals, namely, 203962703864 + ... + 203962703867.

It is an arithmetic number, because the mean of its divisors is an integer number (305944055799).

Almost surely, 2^815850815462 is an apocalyptic number.

815850815462 is a deficient number, since it is larger than the sum of its proper divisors (407925407734).

815850815462 is a wasteful number, since it uses less digits than its factorization.

815850815462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407925407733.

The product of its (nonzero) digits is 3072000, while the sum is 53.

The spelling of 815850815462 in words is "eight hundred fifteen billion, eight hundred fifty million, eight hundred fifteen thousand, four hundred sixty-two".