71428650802 has 32 divisors (see below), whose sum is σ = 110881488960. Its totient is φ = 34488599040.

The previous prime is 71428650793. The next prime is 71428650803. The reversal of 71428650802 is 20805682417.

It is a happy number.

It is a super-4 number, since 4×71428650802⁴ (a number of 45 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (71428650803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3965677 + ... + 3983647.

It is an arithmetic number, because the mean of its divisors is an integer number (3465046530).

Almost surely, 2^71428650802 is an apocalyptic number.

71428650802 is a deficient number, since it is larger than the sum of its proper divisors (39452838158).

71428650802 is a wasteful number, since it uses less digits than its factorization.

71428650802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18538.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 71428650802 in words is "seventy-one billion, four hundred twenty-eight million, six hundred fifty thousand, eight hundred two".