1551420764592 has 40 divisors (see below), whose sum is σ = 4243592093616. Its totient is φ = 486720239616.

The previous prime is 1551420764587. The next prime is 1551420764651. The reversal of 1551420764592 is 2954670241551.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950624653 + ... + 950626284.

Almost surely, 2^{1551420764592} is an apocalyptic number.

1551420764592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1551420764592 is an abundant number, since it is smaller than the sum of its proper divisors (2692171329024).

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

1551420764592 is a wasteful number, since it uses less digits than its factorization.

1551420764592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901250965 (or 1901250959 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 1551420764592 in words is "one trillion, five hundred fifty-one billion, four hundred twenty million, seven hundred sixty-four thousand, five hundred ninety-two".