9051699640 has 48 divisors (see below), whose sum is σ = 21634842600. Its totient is φ = 3407694336.

The previous prime is 9051699619. The next prime is 9051699677. The reversal of 9051699640 is 469961509.

It is a super-2 number, since 2×9051699640² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379950 + ... + 403069.

Almost surely, 2^9051699640 is an apocalyptic number.

It is an amenable number.

9051699640 is an abundant number, since it is smaller than the sum of its proper divisors (12583142960).

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

9051699640 is a wasteful number, since it uses less digits than its factorization.

9051699640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783064 (or 783043 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 9051699640 is about 95140.4206423327. The cubic root of 9051699640 is about 2084.0591683300.

The spelling of 9051699640 in words is "nine billion, fifty-one million, six hundred ninety-nine thousand, six hundred forty".