71864763357530 has 32 divisors (see below), whose sum is σ = 151971359718528. Its totient is φ = 24122438049600.

The previous prime is 71864763357511. The next prime is 71864763357551. The reversal of 71864763357530 is 3575336746817.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25127538206 + ... + 25127541065.

It is an arithmetic number, because the mean of its divisors is an integer number (4749104991204).

Almost surely, 2^{71864763357530} is an apocalyptic number.

71864763357530 is an abundant number, since it is smaller than the sum of its proper divisors (80106596360998).

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

71864763357530 is a wasteful number, since it uses less digits than its factorization.

71864763357530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50255079302.

The product of its (nonzero) digits is 266716800, while the sum is 65.

The spelling of 71864763357530 in words is "seventy-one trillion, eight hundred sixty-four billion, seven hundred sixty-three million, three hundred fifty-seven thousand, five hundred thirty".