187792809948490 has 16 divisors (see below), whose sum is σ = 338358782221920. Its totient is φ = 75043407465040.

The previous prime is 187792809948463. The next prime is 187792809948493. The reversal of 187792809948490 is 94849908297781.

It is a super-2 number, since 2×187792809948490² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 187792809948398 and 187792809948407.

It is not an unprimeable number, because it can be changed into a prime (187792809948493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9214553596 + ... + 9214573975.

It is an arithmetic number, because the mean of its divisors is an integer number (21147423888870).

Almost surely, 2^{187792809948490} is an apocalyptic number.

187792809948490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

187792809948490 is a deficient number, since it is larger than the sum of its proper divisors (150565972273430).

187792809948490 is a wasteful number, since it uses less digits than its factorization.

187792809948490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18429128597.

The product of its (nonzero) digits is 5267275776, while the sum is 85.

The spelling of 187792809948490 in words is "one hundred eighty-seven trillion, seven hundred ninety-two billion, eight hundred nine million, nine hundred forty-eight thousand, four hundred ninety".