10387761945485 has 16 divisors (see below), whose sum is σ = 12510050324400. Its totient is φ = 8280406417920.

The previous prime is 10387761945481. The next prime is 10387761945523. The reversal of 10387761945485 is 58454916778301.

It can be written as a sum of positive squares in 8 ways, for example, as 247683391684 + 10140078553801 = 497678^2 + 3184349^2 .

It is not a de Polignac number, because 10387761945485 - 2² = 10387761945481 is a prime.

It is a super-2 number, since 2×10387761945485² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10387761945481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2687195 + ... + 5291175.

It is an arithmetic number, because the mean of its divisors is an integer number (781878145275).

Almost surely, 2^{10387761945485} is an apocalyptic number.

It is an amenable number.

10387761945485 is a deficient number, since it is larger than the sum of its proper divisors (2122288378915).

10387761945485 is a wasteful number, since it uses less digits than its factorization.

10387761945485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606848.

The product of its (nonzero) digits is 203212800, while the sum is 68.

The spelling of 10387761945485 in words is "ten trillion, three hundred eighty-seven billion, seven hundred sixty-one million, nine hundred forty-five thousand, four hundred eighty-five".