634515552545 has 8 divisors (see below), whose sum is σ = 870192757824. Its totient is φ = 435096378864.

The previous prime is 634515552533. The next prime is 634515552557. The reversal of 634515552545 is 545255515436.

It is an interprime number because it is at equal distance from previous prime (634515552533) and next prime (634515552557).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 634515552545 - 2⁶ = 634515552481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634515552493 and 634515552502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9064507859 + ... + 9064507928.

It is an arithmetic number, because the mean of its divisors is an integer number (108774094728).

Almost surely, 2^634515552545 is an apocalyptic number.

It is an amenable number.

634515552545 is a deficient number, since it is larger than the sum of its proper divisors (235677205279).

634515552545 is a wasteful number, since it uses less digits than its factorization.

634515552545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18129015799.

The product of its digits is 9000000, while the sum is 50.

The spelling of 634515552545 in words is "six hundred thirty-four billion, five hundred fifteen million, five hundred fifty-two thousand, five hundred forty-five".