83820451825508 has 12 divisors (see below), whose sum is σ = 146720039099760. Its totient is φ = 41900440654152.

The previous prime is 83820451825489. The next prime is 83820451825511. The reversal of 83820451825508 is 80552815402838.

It is a happy 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, 2446295378 + ... + 2446329641.

It is an arithmetic number, because the mean of its divisors is an integer number (12226669924980).

Almost surely, 2^{83820451825508} is an apocalyptic number.

It is an amenable number.

83820451825508 is a deficient number, since it is larger than the sum of its proper divisors (62899587274252).

83820451825508 is a wasteful number, since it uses less digits than its factorization.

83820451825508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4892629306 (or 4892629304 counting only the distinct ones).

The product of its (nonzero) digits is 24576000, while the sum is 59.

The spelling of 83820451825508 in words is "eighty-three trillion, eight hundred twenty billion, four hundred fifty-one million, eight hundred twenty-five thousand, five hundred eight".