71145930856490 has 16 divisors (see below), whose sum is σ = 146357343476352. Its totient is φ = 24392890579344.

The previous prime is 71145930856459. The next prime is 71145930856493. The reversal of 71145930856490 is 9465803954117.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71145930856493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508185220334 + ... + 508185220473.

It is an arithmetic number, because the mean of its divisors is an integer number (9147333967272).

Almost surely, 2^{71145930856490} is an apocalyptic number.

71145930856490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71145930856490 is an abundant number, since it is smaller than the sum of its proper divisors (75211412619862).

71145930856490 is a wasteful number, since it uses less digits than its factorization.

71145930856490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016370440821.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 71145930856490 in words is "seventy-one trillion, one hundred forty-five billion, nine hundred thirty million, eight hundred fifty-six thousand, four hundred ninety".