732878979840 has 2016 divisors, whose sum is σ = 3213875387520. Its totient is φ = 156513337344.

The previous prime is 732878979839. The next prime is 732878979881. The reversal of 732878979840 is 48979878237.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a super-2 number, since 2×732878979840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 10039438044 + ... + 10039438116.

It is an arithmetic number, because the mean of its divisors is an integer number (1594184220).

Almost surely, 2^732878979840 is an apocalyptic number.

732878979840 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 732878979840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606937693760).

732878979840 is an abundant number, since it is smaller than the sum of its proper divisors (2480996407680).

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

732878979840 is an equidigital number, since it uses as much as digits as its factorization.

732878979840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 72.

The spelling of 732878979840 in words is "seven hundred thirty-two billion, eight hundred seventy-eight million, nine hundred seventy-nine thousand, eight hundred forty".