730732510785840 has 160 divisors (see below), whose sum is σ = 2267600129588736. Its totient is φ = 194661683527680.

The previous prime is 730732510785773. The next prime is 730732510785841. The reversal of 730732510785840 is 48587015237037.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (730732510785841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1746170707 + ... + 1746589133.

Almost surely, 2^{730732510785840} is an apocalyptic number.

It is an amenable number.

730732510785840 is an abundant number, since it is smaller than the sum of its proper divisors (1536867618802896).

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

730732510785840 is a wasteful number, since it uses less digits than its factorization.

730732510785840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425907 (or 425901 counting only the distinct ones).

The product of its (nonzero) digits is 39513600, while the sum is 60.

The spelling of 730732510785840 in words is "seven hundred thirty trillion, seven hundred thirty-two billion, five hundred ten million, seven hundred eighty-five thousand, eight hundred forty".