15246842742440 has 64 divisors (see below), whose sum is σ = 34683737932800. Its totient is φ = 6031709494272.

The previous prime is 15246842742409. The next prime is 15246842742451. The reversal of 15246842742440 is 4424724864251.

It is a super-2 number, since 2×15246842742440² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1550000 + ... + 5735519.

It is an arithmetic number, because the mean of its divisors is an integer number (541933405200).

Almost surely, 2^{15246842742440} is an apocalyptic number.

15246842742440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15246842742440 is an abundant number, since it is smaller than the sum of its proper divisors (19436895190360).

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

15246842742440 is a wasteful number, since it uses less digits than its factorization.

15246842742440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7286106 (or 7286102 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 53.

The spelling of 15246842742440 in words is "fifteen trillion, two hundred forty-six billion, eight hundred forty-two million, seven hundred forty-two thousand, four hundred forty".