18060778002 has 32 divisors (see below), whose sum is σ = 39480113664. Its totient is φ = 5483347200.

The previous prime is 18060777983. The next prime is 18060778003. The reversal of 18060778002 is 20087706081.

It is a super-2 number, since 2×18060778002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18060778003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2852749 + ... + 2859072.

It is an arithmetic number, because the mean of its divisors is an integer number (1233753552).

Almost surely, 2^18060778002 is an apocalyptic number.

18060778002 is an abundant number, since it is smaller than the sum of its proper divisors (21419335662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18060778002 is a wasteful number, since it uses less digits than its factorization.

18060778002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711874.

The product of its (nonzero) digits is 37632, while the sum is 39.

The spelling of 18060778002 in words is "eighteen billion, sixty million, seven hundred seventy-eight thousand, two".