425651605516450 has 12 divisors (see below), whose sum is σ = 791711986260690. Its totient is φ = 170260642206560.

The previous prime is 425651605516411. The next prime is 425651605516463. The reversal of 425651605516450 is 54615506156524.

It can be written as a sum of positive squares in 3 ways, for example, as 229909988305089 + 195741617211361 = 15162783^2 + 13990769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 425651605516391 and 425651605516400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4256516055115 + ... + 4256516055214.

Almost surely, 2^{425651605516450} is an apocalyptic number.

425651605516450 is a deficient number, since it is larger than the sum of its proper divisors (366060380744240).

425651605516450 is a wasteful number, since it uses less digits than its factorization.

425651605516450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8513032110341 (or 8513032110336 counting only the distinct ones).

The product of its (nonzero) digits is 21600000, while the sum is 55.

The spelling of 425651605516450 in words is "four hundred twenty-five trillion, six hundred fifty-one billion, six hundred five million, five hundred sixteen thousand, four hundred fifty".