351939402739 has 8 divisors (see below), whose sum is σ = 360316393712. Its totient is φ = 343571155200.

The previous prime is 351939402701. The next prime is 351939402743. The reversal of 351939402739 is 937204939153.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351939402739 is a prime.

It is a super-2 number, since 2×351939402739² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 351939402739.

It is not an unprimeable number, because it can be changed into a prime (351939412739) 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, 2104362 + ... + 2265439.

It is an arithmetic number, because the mean of its divisors is an integer number (45039549214).

Almost surely, 2^351939402739 is an apocalyptic number.

351939402739 is a deficient number, since it is larger than the sum of its proper divisors (8376990973).

351939402739 is a wasteful number, since it uses less digits than its factorization.

351939402739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371717.

The product of its (nonzero) digits is 5511240, while the sum is 55.

The spelling of 351939402739 in words is "three hundred fifty-one billion, nine hundred thirty-nine million, four hundred two thousand, seven hundred thirty-nine".