84721163762 has 4 divisors (see below), whose sum is σ = 127081745646. Its totient is φ = 42360581880.

The previous prime is 84721163759. The next prime is 84721163797. The reversal of 84721163762 is 26736112748.

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

It can be written as a sum of positive squares in only one way, i.e., 61256745001 + 23464418761 = 247501^2 + 153181^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21180290939 + ... + 21180290942.

Almost surely, 2^84721163762 is an apocalyptic number.

84721163762 is a deficient number, since it is larger than the sum of its proper divisors (42360581884).

84721163762 is a wasteful number, since it uses less digits than its factorization.

84721163762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42360581883.

The product of its digits is 677376, while the sum is 47.

The spelling of 84721163762 in words is "eighty-four billion, seven hundred twenty-one million, one hundred sixty-three thousand, seven hundred sixty-two".