6420733973942 has 32 divisors (see below), whose sum is σ = 9732424907520. Its totient is φ = 3176778852000.

The previous prime is 6420733973923. The next prime is 6420733973993. The reversal of 6420733973942 is 2493793370246.

It is a congruent number.

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, 170080313 + ... + 170118059.

It is an arithmetic number, because the mean of its divisors is an integer number (304138278360).

Almost surely, 2^{6420733973942} is an apocalyptic number.

6420733973942 is a deficient number, since it is larger than the sum of its proper divisors (3311690933578).

6420733973942 is a wasteful number, since it uses less digits than its factorization.

6420733973942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40196.

The product of its (nonzero) digits is 41150592, while the sum is 59.

The spelling of 6420733973942 in words is "six trillion, four hundred twenty billion, seven hundred thirty-three million, nine hundred seventy-three thousand, nine hundred forty-two".