3551451401047 has 4 divisors (see below), whose sum is σ = 3874310619336. Its totient is φ = 3228592182760.

The previous prime is 3551451401041. The next prime is 3551451401087. The reversal of 3551451401047 is 7401041541553.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3551451401047 is a prime.

It is a super-2 number, since 2×3551451401047² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551451401041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161429609128 + ... + 161429609149.

It is an arithmetic number, because the mean of its divisors is an integer number (968577654834).

Almost surely, 2^{3551451401047} is an apocalyptic number.

3551451401047 is a deficient number, since it is larger than the sum of its proper divisors (322859218289).

3551451401047 is a wasteful number, since it uses less digits than its factorization.

3551451401047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322859218288.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 3551451401047 in words is "three trillion, five hundred fifty-one billion, four hundred fifty-one million, four hundred one thousand, forty-seven".