8402649577 has 32 divisors (see below), whose sum is σ = 9839784960. Its totient is φ = 7027637760.

The previous prime is 8402649559. The next prime is 8402649599. The reversal of 8402649577 is 7759462048.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8402649577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8402649527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26506623 + ... + 26506939.

It is an arithmetic number, because the mean of its divisors is an integer number (307493280).

Almost surely, 2^8402649577 is an apocalyptic number.

It is an amenable number.

8402649577 is a deficient number, since it is larger than the sum of its proper divisors (1437135383).

8402649577 is a wasteful number, since it uses less digits than its factorization.

8402649577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The square root of 8402649577 is about 91665.9673870297. The cubic root of 8402649577 is about 2033.0064229400.

The spelling of 8402649577 in words is "eight billion, four hundred two million, six hundred forty-nine thousand, five hundred seventy-seven".