610638213540 has 24 divisors (see below), whose sum is σ = 1709786998080. Its totient is φ = 162836856928.

The previous prime is 610638213539. The next prime is 610638213553. The reversal of 610638213540 is 45312836016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5088651720 + ... + 5088651839.

It is an arithmetic number, because the mean of its divisors is an integer number (71241124920).

Almost surely, 2^610638213540 is an apocalyptic number.

610638213540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

610638213540 is an abundant number, since it is smaller than the sum of its proper divisors (1099148784540).

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

610638213540 is a wasteful number, since it uses less digits than its factorization.

610638213540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10177303571 (or 10177303569 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 610638213540 in words is "six hundred ten billion, six hundred thirty-eight million, two hundred thirteen thousand, five hundred forty".