727777324890 has 96 divisors (see below), whose sum is σ = 2359132753536. Its totient is φ = 151226455680.

The previous prime is 727777324871. The next prime is 727777324891. The reversal of 727777324890 is 98423777727.

It is a super-2 number, since 2×727777324890² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (727777324891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52502257 + ... + 52516116.

It is an arithmetic number, because the mean of its divisors is an integer number (24574299516).

Almost surely, 2^727777324890 is an apocalyptic number.

727777324890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

727777324890 is an abundant number, since it is smaller than the sum of its proper divisors (1631355428646).

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

727777324890 is a wasteful number, since it uses less digits than its factorization.

727777324890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105018404 (or 105018401 counting only the distinct ones).

The product of its (nonzero) digits is 58084992, while the sum is 63.

The spelling of 727777324890 in words is "seven hundred twenty-seven billion, seven hundred seventy-seven million, three hundred twenty-four thousand, eight hundred ninety".