64858463697400 has 96 divisors (see below), whose sum is σ = 150967100924640. Its totient is φ = 25913942466560.

The previous prime is 64858463697353. The next prime is 64858463697421. The reversal of 64858463697400 is 479636485846.

It is a self number, because there is not a number n which added to its sum of digits gives 64858463697400.

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, 2987068944 + ... + 2987090656.

It is an arithmetic number, because the mean of its divisors is an integer number (1572573967965).

Almost surely, 2^{64858463697400} is an apocalyptic number.

It is an amenable number.

64858463697400 is an abundant number, since it is smaller than the sum of its proper divisors (86108637227240).

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

64858463697400 is a wasteful number, since it uses less digits than its factorization.

64858463697400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37993 (or 37984 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 70.

The spelling of 64858463697400 in words is "sixty-four trillion, eight hundred fifty-eight billion, four hundred sixty-three million, six hundred ninety-seven thousand, four hundred".