7658216062464 has 640 divisors, whose sum is σ = 24079515812352. Its totient is φ = 2136803901440.

The previous prime is 7658216062433. The next prime is 7658216062493. The reversal of 7658216062464 is 4642606128567.

It is a super-2 number, since 2×7658216062464² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8936074324 + ... + 8936075180.

Almost surely, 2^{7658216062464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7658216062464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12039757906176).

7658216062464 is an abundant number, since it is smaller than the sum of its proper divisors (16421299749888).

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

7658216062464 is a wasteful number, since it uses less digits than its factorization.

7658216062464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 7658216062464 in words is "seven trillion, six hundred fifty-eight billion, two hundred sixteen million, sixty-two thousand, four hundred sixty-four".