9945487948730 has 16 divisors (see below), whose sum is σ = 18680220843264. Its totient is φ = 3805230171600.

The previous prime is 9945487948727. The next prime is 9945487948789. The reversal of 9945487948730 is 378497845499.

It is a super-2 number, since 2×9945487948730² (a number of 27 digits) contains 22 as substring.

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, 21620625746 + ... + 21620626205.

It is an arithmetic number, because the mean of its divisors is an integer number (1167513802704).

Almost surely, 2^{9945487948730} is an apocalyptic number.

9945487948730 is a deficient number, since it is larger than the sum of its proper divisors (8734732894534).

9945487948730 is a wasteful number, since it uses less digits than its factorization.

9945487948730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43241251981.

The product of its (nonzero) digits is 2194698240, while the sum is 77.

The spelling of 9945487948730 in words is "nine trillion, nine hundred forty-five billion, four hundred eighty-seven million, nine hundred forty-eight thousand, seven hundred thirty".