399714971750 has 32 divisors (see below), whose sum is σ = 748381196160. Its totient is φ = 159861465600.

The previous prime is 399714971693. The next prime is 399714971801. The reversal of 399714971750 is 57179417993.

It is a super-2 number, since 2×399714971750² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1556486 + ... + 1795014.

It is an arithmetic number, because the mean of its divisors is an integer number (23386912380).

Almost surely, 2^399714971750 is an apocalyptic number.

399714971750 is a deficient number, since it is larger than the sum of its proper divisors (348666224410).

399714971750 is a wasteful number, since it uses less digits than its factorization.

399714971750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245249 (or 245239 counting only the distinct ones).

The product of its (nonzero) digits is 15002820, while the sum is 62.

The spelling of 399714971750 in words is "three hundred ninety-nine billion, seven hundred fourteen million, nine hundred seventy-one thousand, seven hundred fifty".