1051631555407 has 16 divisors (see below), whose sum is σ = 1116882470880. Its totient is φ = 988605654400.

The previous prime is 1051631555347. The next prime is 1051631555411. The reversal of 1051631555407 is 7045551361501.

It is a cyclic number.

It is not a de Polignac number, because 1051631555407 - 2¹⁵ = 1051631522639 is a prime.

It is a super-2 number, since 2×1051631555407² (a number of 25 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 (1051641555407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2410144 + ... + 2812837.

It is an arithmetic number, because the mean of its divisors is an integer number (69805154430).

Almost surely, 2^{1051631555407} is an apocalyptic number.

1051631555407 is a deficient number, since it is larger than the sum of its proper divisors (65250915473).

1051631555407 is a wasteful number, since it uses less digits than its factorization.

1051631555407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223194.

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 1051631555407 in words is "one trillion, fifty-one billion, six hundred thirty-one million, five hundred fifty-five thousand, four hundred seven".