349755529780 has 12 divisors (see below), whose sum is σ = 734486612580. Its totient is φ = 139902211904.

The previous prime is 349755529769. The next prime is 349755529811. The reversal of 349755529780 is 87925557943.

It can be written as a sum of positive squares in 2 ways, for example, as 42863905296 + 306891624484 = 207036^2 + 553978^2 .

It is a super-2 number, since 2×349755529780² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8743888225 + ... + 8743888264.

It is an arithmetic number, because the mean of its divisors is an integer number (61207217715).

Almost surely, 2^349755529780 is an apocalyptic number.

It is an amenable number.

349755529780 is an abundant number, since it is smaller than the sum of its proper divisors (384731082800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349755529780 is a wasteful number, since it uses less digits than its factorization.

349755529780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17487776498 (or 17487776496 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 64.

The spelling of 349755529780 in words is "three hundred forty-nine billion, seven hundred fifty-five million, five hundred twenty-nine thousand, seven hundred eighty".