614491879140 has 72 divisors (see below), whose sum is σ = 1874733122808. Its totient is φ = 162917299200.

The previous prime is 614491879121. The next prime is 614491879153. The reversal of 614491879140 is 41978194416.

It is a happy number.

614491879140 is a `hidden beast` number, since 6 + 1 + 4 + 491 + 8 + 7 + 9 + 140 = 666.

614491879140 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 232871874624 + 381620004516 = 482568^2 + 617754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9835461 + ... + 9897740.

It is an arithmetic number, because the mean of its divisors is an integer number (26037960039).

Almost surely, 2^614491879140 is an apocalyptic number.

614491879140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

614491879140 is an abundant number, since it is smaller than the sum of its proper divisors (1260241243668).

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

614491879140 is a wasteful number, since it uses less digits than its factorization.

614491879140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19733389 (or 19733384 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 614491879140 in words is "six hundred fourteen billion, four hundred ninety-one million, eight hundred seventy-nine thousand, one hundred forty".