719491812 has 36 divisors (see below), whose sum is σ = 1817892720. Its totient is φ = 221381472.

The previous prime is 719491811. The next prime is 719491813. The reversal of 719491812 is 218194917.

It is an interprime number because it is at equal distance from previous prime (719491811) and next prime (719491813).

It is not an unprimeable number, because it can be changed into a prime (719491811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175362 + ... + 179417.

It is an arithmetic number, because the mean of its divisors is an integer number (50497020).

Almost surely, 2^719491812 is an apocalyptic number.

It is an amenable number.

719491812 is an abundant number, since it is smaller than the sum of its proper divisors (1098400908).

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

719491812 is a wasteful number, since it uses less digits than its factorization.

719491812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354812 (or 354797 counting only the distinct ones).

The product of its digits is 36288, while the sum is 42.

The square root of 719491812 is about 26823.3445341926. The cubic root of 719491812 is about 896.0700296694.

The spelling of 719491812 in words is "seven hundred nineteen million, four hundred ninety-one thousand, eight hundred twelve".