400074519928061 has 12 divisors (see below), whose sum is σ = 439767101183676. Its totient is φ = 363691066696320.

The previous prime is 400074519928019. The next prime is 400074519928067. The reversal of 400074519928061 is 160829915470004.

It can be written as a sum of positive squares in 2 ways, for example, as 355865398716025 + 44209121212036 = 18864395^2 + 6648994^2 .

It is not a de Polignac number, because 400074519928061 - 2⁴⁶ = 329705775750397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400074519927988 and 400074519928006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400074519928067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55894316 + ... + 62644421.

It is an arithmetic number, because the mean of its divisors is an integer number (36647258431973).

Almost surely, 2^{400074519928061} is an apocalyptic number.

It is an amenable number.

400074519928061 is a deficient number, since it is larger than the sum of its proper divisors (39692581255615).

400074519928061 is a wasteful number, since it uses less digits than its factorization.

400074519928061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118566652 (or 118566641 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 400074519928061 in words is "four hundred trillion, seventy-four billion, five hundred nineteen million, nine hundred twenty-eight thousand, sixty-one".