1651513998 has 16 divisors (see below), whose sum is σ = 3303426816. Its totient is φ = 550438200.

The previous prime is 1651513979. The next prime is 1651513999. The reversal of 1651513998 is 8993151561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651513999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85323 + ... + 102873.

It is an arithmetic number, because the mean of its divisors is an integer number (206464176).

Almost surely, 2^1651513998 is an apocalyptic number.

1651513998 is an abundant number, since it is smaller than the sum of its proper divisors (1651912818).

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

1651513998 is a wasteful number, since it uses less digits than its factorization.

1651513998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33239.

The product of its digits is 291600, while the sum is 48.

The square root of 1651513998 is about 40638.8237772699. The cubic root of 1651513998 is about 1182.0270621179.

The spelling of 1651513998 in words is "one billion, six hundred fifty-one million, five hundred thirteen thousand, nine hundred ninety-eight".