1534398783948 has 36 divisors (see below), whose sum is σ = 3983446696320. Its totient is φ = 497642848416.

The previous prime is 1534398783919. The next prime is 1534398783989. The reversal of 1534398783948 is 8493878934351.

1534398783948 is a `hidden beast` number, since 1 + 53 + 439 + 8 + 78 + 39 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1534398783948² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575974188 + ... + 575976851.

It is an arithmetic number, because the mean of its divisors is an integer number (110651297120).

Almost surely, 2^{1534398783948} is an apocalyptic number.

1534398783948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1534398783948 is an abundant number, since it is smaller than the sum of its proper divisors (2449047912372).

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

1534398783948 is a wasteful number, since it uses less digits than its factorization.

1534398783948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151951086 (or 1151951081 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 1534398783948 in words is "one trillion, five hundred thirty-four billion, three hundred ninety-eight million, seven hundred eighty-three thousand, nine hundred forty-eight".