651754461557 has 12 divisors (see below), whose sum is σ = 667221051744. Its totient is φ = 636584749920.

The previous prime is 651754461503. The next prime is 651754461667. The reversal of 651754461557 is 755164457156.

It is not a de Polignac number, because 651754461557 - 2¹² = 651754457461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651754461857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44819 + ... + 1142592.

It is an arithmetic number, because the mean of its divisors is an integer number (55601754312).

Almost surely, 2^651754461557 is an apocalyptic number.

It is an amenable number.

651754461557 is a deficient number, since it is larger than the sum of its proper divisors (15466590187).

651754461557 is a wasteful number, since it uses less digits than its factorization.

651754461557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187660 (or 1187587 counting only the distinct ones).

The product of its digits is 17640000, while the sum is 56.

The spelling of 651754461557 in words is "six hundred fifty-one billion, seven hundred fifty-four million, four hundred sixty-one thousand, five hundred fifty-seven".