3551720485137 has 8 divisors (see below), whose sum is σ = 5166138887520. Its totient is φ = 2152557869760.

The previous prime is 3551720485129. The next prime is 3551720485283. The reversal of 3551720485137 is 7315840271553.

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

It is not a de Polignac number, because 3551720485137 - 2³ = 3551720485129 is a prime.

It is a super-2 number, since 2×3551720485137² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3551720485137.

It is not an unprimeable number, because it can be changed into a prime (3551720486137) 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, 53813946712 + ... + 53813946777.

It is an arithmetic number, because the mean of its divisors is an integer number (645767360940).

Almost surely, 2^{3551720485137} is an apocalyptic number.

It is an amenable number.

3551720485137 is a deficient number, since it is larger than the sum of its proper divisors (1614418402383).

3551720485137 is a wasteful number, since it uses less digits than its factorization.

3551720485137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107627893503.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 3551720485137 in words is "three trillion, five hundred fifty-one billion, seven hundred twenty million, four hundred eighty-five thousand, one hundred thirty-seven".