8211672503640 has 96 divisors (see below), whose sum is σ = 26857922672880. Its totient is φ = 2175831680256.

The previous prime is 8211672503621. The next prime is 8211672503659. The reversal of 8211672503640 is 463052761128.

8211672503640 is a `hidden beast` number, since 8 + 2 + 1 + 16 + 72 + 503 + 64 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (8211672503621) and next prime (8211672503659).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72587434 + ... + 72700473.

Almost surely, 2^{8211672503640} is an apocalyptic number.

It is an amenable number.

8211672503640 is an abundant number, since it is smaller than the sum of its proper divisors (18646250169240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8211672503640 is a wasteful number, since it uses less digits than its factorization.

8211672503640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145288081 (or 145288074 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 8211672503640 in words is "eight trillion, two hundred eleven billion, six hundred seventy-two million, five hundred three thousand, six hundred forty".