15465451953 has 32 divisors (see below), whose sum is σ = 23834603520. Its totient is φ = 8737021440.

The previous prime is 15465451933. The next prime is 15465452003. The reversal of 15465451953 is 35915456451.

It is not a de Polignac number, because 15465451953 - 2¹⁰ = 15465450929 is a prime.

It is a super-2 number, since 2×15465451953² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15465451933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2218888 + ... + 2225846.

It is an arithmetic number, because the mean of its divisors is an integer number (744831360).

Almost surely, 2^15465451953 is an apocalyptic number.

It is an amenable number.

15465451953 is a deficient number, since it is larger than the sum of its proper divisors (8369151567).

15465451953 is a wasteful number, since it uses less digits than its factorization.

15465451953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157.

The product of its digits is 1620000, while the sum is 48.

The spelling of 15465451953 in words is "fifteen billion, four hundred sixty-five million, four hundred fifty-one thousand, nine hundred fifty-three".